Kakuro Ozu
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produttori di grafite e/o grafene
- Creatore Discussione bedo
- Data di inizio
Kakuro Ozu
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Vancouver, British Columbia, Toronto, Ontario and New York, NY / ACCESSWIRE / Oct. 6, 2014 / Graphene 3D Lab Inc. (OTCQB: GPHBF, TSX-V: GGG) ("Graphene 3D"), a company focused on the development and manufacture of graphene-enhanced materials for 3D printing, today announced it has been verified to trade on OTCQB(R), the venture marketplace for entrepreneurial and development stage companies operated by OTC Markets Group (OTCQX:OTCM), and is expected to begin trading Oct. 7, 2014. Beginning Oct. 7, U.S. investors can find current financial disclosures and Real-Time Level 2 quotes for the company on OTC Markets Homepage | Official site of the OTCQX, OTCQB and OTC Pink Marketplaces featuring Free Stock & Bond Quotes, Trade Prices, Chart, Financials and Company News & Information for Investors, Companies and Traders - OTCMarkets.com.
"As a U.S. based company, trading on the OTCQB is a natural step in the growth of Graphene 3D," commented Daniel Stolyarov, CEO of Graphene 3D Lab Inc. "Graphene 3D is at a pivotal stage in its development, and with the assistance of Euro Pacific Capital we look forward to increasing awareness of the company to a broader U.S. shareholder base. We believe that Euro Pacific's ability to broaden the company's access to both current and prospective U.S. shareholders will be key to our continued growth. We also believe that all shareholders will benefit from Euro Pacific's access to a larger number of retail and institutional investors."
"As a U.S. based company, trading on the OTCQB is a natural step in the growth of Graphene 3D," commented Daniel Stolyarov, CEO of Graphene 3D Lab Inc. "Graphene 3D is at a pivotal stage in its development, and with the assistance of Euro Pacific Capital we look forward to increasing awareness of the company to a broader U.S. shareholder base. We believe that Euro Pacific's ability to broaden the company's access to both current and prospective U.S. shareholders will be key to our continued growth. We also believe that all shareholders will benefit from Euro Pacific's access to a larger number of retail and institutional investors."
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VANCOUVER, BRITISH COLUMBIA and MONTREAL, QUEBEC--(Marketwired - Oct 6, 2014) - Lomiko Metals Inc. ("Lomiko") (TSX VENTURE:LMR)(LMRMF)(DH8B.F) and Canada Strategic Metals Inc. ("Strategic Metals" or the "Company") (TSX VENTURE:CJC)(YXEN.F)(CJCFF) are very pleased to announce that a drilling permit for the La Loutre Crystalline Flake Graphite Property has been issued which allows for up to 29 drill holes. On September 23, 2014 Lomiko optioned 40% interest in the La Loutre Crystalline Flake Graphite Property located in Quebec last month. A full set of results was reported in that news release.
The goal of the exploration program is to identify high-grade, near-surface graphite mineralization suitable for conversion to battery-grade graphite. The graphite industry could see exponential growth based on new demand for lithium-ion batteries, which use 10 to 15 times as much graphite as lithium.
Telsa Motor Cars and Panasonic announced a new Lithium-ion Giga-factory in Nevada which is estimated to double the yearly supply of Li-ion batteries by 2020. Currently, synthetic graphite with consistent carbon purity of 99% or more is used in Li-ion batteries. This effects the graphite market in two ways. One, the price of synthetic graphite is likely to increase based on increased demand for all graphite products. Two, if a natural, cost-effective source of consistently high carbon purity graphite is derived from a property, groups such as Telsa could use the material directly in their batteries.
Of particular interest to Lomiko was an area of the property which reported grab samples up to 22.04% Carbon Flake Graphite (CFG) and Carbon Purity Test results reporting up to 100.00% Carbon Purity in the Large and Extra Large Flake Graphite.
Graphite grab sample assay results derived from a recent sampling and mapping program on the has confirmed a graphite bearing structure covering an area approximately 7 kilometers by 1 kilometer with results of up to 22.04% graphite in multiple parallel zones of 30-50 meters wide. Another area has also been identified covering approximately 2 kilometers by 1 kilometer in multiple parallel zones of 20-50 meters wide which includes results up to 18% graphite. Grab samples are selective by nature and are unlikely to represent the average grade of a deposit. The drilling program is designed to test these areas.
Jean-Sebastien Lavallée (OGQ #773), geologist, a Qualified Person as defined by National Instrument 43-101, has reviewed and approved the technical content of this release.
On Behalf of the Board
A. Paul Gill, Chief Executive Officer
The goal of the exploration program is to identify high-grade, near-surface graphite mineralization suitable for conversion to battery-grade graphite. The graphite industry could see exponential growth based on new demand for lithium-ion batteries, which use 10 to 15 times as much graphite as lithium.
Telsa Motor Cars and Panasonic announced a new Lithium-ion Giga-factory in Nevada which is estimated to double the yearly supply of Li-ion batteries by 2020. Currently, synthetic graphite with consistent carbon purity of 99% or more is used in Li-ion batteries. This effects the graphite market in two ways. One, the price of synthetic graphite is likely to increase based on increased demand for all graphite products. Two, if a natural, cost-effective source of consistently high carbon purity graphite is derived from a property, groups such as Telsa could use the material directly in their batteries.
Of particular interest to Lomiko was an area of the property which reported grab samples up to 22.04% Carbon Flake Graphite (CFG) and Carbon Purity Test results reporting up to 100.00% Carbon Purity in the Large and Extra Large Flake Graphite.
Graphite grab sample assay results derived from a recent sampling and mapping program on the has confirmed a graphite bearing structure covering an area approximately 7 kilometers by 1 kilometer with results of up to 22.04% graphite in multiple parallel zones of 30-50 meters wide. Another area has also been identified covering approximately 2 kilometers by 1 kilometer in multiple parallel zones of 20-50 meters wide which includes results up to 18% graphite. Grab samples are selective by nature and are unlikely to represent the average grade of a deposit. The drilling program is designed to test these areas.
Jean-Sebastien Lavallée (OGQ #773), geologist, a Qualified Person as defined by National Instrument 43-101, has reviewed and approved the technical content of this release.
On Behalf of the Board
A. Paul Gill, Chief Executive Officer
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MONTREAL, QUEBEC--(Marketwired - Oct 8, 2014) -
Editors Note: There is a photo associated with this press release.
Mason Graphite Inc. ("Mason Graphite" or the "Company") (TSX VENTURE:LLG)(MGPHF) is pleased to report the second batch of assay results from the 2013-2014 drilling program at its Lac Guéret project in northeastern Quebec. The drill program consisted of 97 holes totaling 15,108 metres and was designed to pursue three objectives:
•to explore for mineral extensions to the North-East and beyond the defined resource envelope of the GC Zone (18 holes totaling 2,085 metres) - Results previously reported in the press release dated July 29, 2014;
•to explore for mineral continuity within the defined resource envelope of the GC Zone (68 holes totaling 11,323 metres); and
•to conduct exploration drilling on graphite showings on the property located beyond the areas where drilling had previously been conducted (11 holes totaling 1,700 metres).
This press release reports assay results from drilling conducted in the GC zone. The remaining drilling results will be reported in upcoming communications.
Results Confirm Presence of High Grade Areas in the GC Zone
"We are very pleased that these new results confirm the continuity of the mineralization within the GC zone. Furthermore, we continue to obtain high graphite grades, which supports our belief in the exceptional quality of the Lac Guéret property. These latest results will be combined with those from the North-East extension to update our resource estimate, which is expected to lead to the upgrade of the resource categories and to also allow for the optimization of the mining plan during our Feasibility Study." said Benoit Gascon, President and CEO of Mason Graphite.
Drilling was performed in a quincunx pattern, with new holes drilled roughly in the middle of four (4) existing holes, resulting in an average distance of 35 metres between holes. The former drilling followed a grid pattern, with average spacing of 50 x 50 metres.
Intercept highlights from drilling conducted inside the PEA open pit envelope in the GC Zone include:
•Hole LG-403 intersected 76 metres at 27.5 % Cg, including 38 metres at 39.3 % Cg;
•Hole LG-421 intersected 46 metres at 28.7 % Cg, including 27 metres at 40.3 % Cg;
•Hole LG-424 intersected 86 metres at 32.7 % Cg, including 73 metres at 36.1 % Cg; and
•Hole LG-471 intersected 50 metres at 23.9 % Cg near the surface (4 metres), including 21 metres at 37.4 % Cg.
Intercept highlights from drilling conducted outside the PEA open pit envelope in the GC Zone include:
•Hole LG-420 intersected 42 metres at 24.6 % Cg, including 17 metres at 34.7 % Cg near the surface (7 metres);
•Hole LG-439 intersected 58 metres at 20.2 % Cg, including 14 metres at 36.6 % Cg;
•Hole LG-455 intersected 202 metres at 21.6 % Cg, including 3 intersections of 17, 24 and 46 metres at 30.7 % Cg to 33.3 % Cg, respectively;
•Hole LG-458 intersected 91 metres at 25.3 % Cg, including 30 metres at 40.8 % Cg; and
•Hole LG-463 intersected 130 metres at 26.7 % Cg, including 57 metres at 39.0 % Cg.
Table 1 - Most relevant drill results from the GC Zone, inside the PEA Pit Envelope
Follow this link to view table: http://bit.ly/1BSy1m4
Table 2 - Most relevant drill results from the GC Zone, outside the PEA Pit Envelope
Follow this link to view table: http://bit.ly/1uC1PTJ
Appointment of Director of Sustainable Development
Mason Graphite is also pleased to announce that Mrs. Jacqueline Leroux, Eng. has joined its management team as Director of Sustainable Development. Mrs. Leroux has worked for two major mining projects in the province of Quebec (Project BlackRock and Project Éléonore) where she was in charge of sustainable development, various environmental studies and social relations. She successfully conducted the permitting processes for both projects. Her experience is expected to be invaluable to the development of the Lac Guéret project.
Editors Note: There is a photo associated with this press release.
Mason Graphite Inc. ("Mason Graphite" or the "Company") (TSX VENTURE:LLG)(MGPHF) is pleased to report the second batch of assay results from the 2013-2014 drilling program at its Lac Guéret project in northeastern Quebec. The drill program consisted of 97 holes totaling 15,108 metres and was designed to pursue three objectives:
•to explore for mineral extensions to the North-East and beyond the defined resource envelope of the GC Zone (18 holes totaling 2,085 metres) - Results previously reported in the press release dated July 29, 2014;
•to explore for mineral continuity within the defined resource envelope of the GC Zone (68 holes totaling 11,323 metres); and
•to conduct exploration drilling on graphite showings on the property located beyond the areas where drilling had previously been conducted (11 holes totaling 1,700 metres).
This press release reports assay results from drilling conducted in the GC zone. The remaining drilling results will be reported in upcoming communications.
Results Confirm Presence of High Grade Areas in the GC Zone
"We are very pleased that these new results confirm the continuity of the mineralization within the GC zone. Furthermore, we continue to obtain high graphite grades, which supports our belief in the exceptional quality of the Lac Guéret property. These latest results will be combined with those from the North-East extension to update our resource estimate, which is expected to lead to the upgrade of the resource categories and to also allow for the optimization of the mining plan during our Feasibility Study." said Benoit Gascon, President and CEO of Mason Graphite.
Drilling was performed in a quincunx pattern, with new holes drilled roughly in the middle of four (4) existing holes, resulting in an average distance of 35 metres between holes. The former drilling followed a grid pattern, with average spacing of 50 x 50 metres.
Intercept highlights from drilling conducted inside the PEA open pit envelope in the GC Zone include:
•Hole LG-403 intersected 76 metres at 27.5 % Cg, including 38 metres at 39.3 % Cg;
•Hole LG-421 intersected 46 metres at 28.7 % Cg, including 27 metres at 40.3 % Cg;
•Hole LG-424 intersected 86 metres at 32.7 % Cg, including 73 metres at 36.1 % Cg; and
•Hole LG-471 intersected 50 metres at 23.9 % Cg near the surface (4 metres), including 21 metres at 37.4 % Cg.
Intercept highlights from drilling conducted outside the PEA open pit envelope in the GC Zone include:
•Hole LG-420 intersected 42 metres at 24.6 % Cg, including 17 metres at 34.7 % Cg near the surface (7 metres);
•Hole LG-439 intersected 58 metres at 20.2 % Cg, including 14 metres at 36.6 % Cg;
•Hole LG-455 intersected 202 metres at 21.6 % Cg, including 3 intersections of 17, 24 and 46 metres at 30.7 % Cg to 33.3 % Cg, respectively;
•Hole LG-458 intersected 91 metres at 25.3 % Cg, including 30 metres at 40.8 % Cg; and
•Hole LG-463 intersected 130 metres at 26.7 % Cg, including 57 metres at 39.0 % Cg.
Table 1 - Most relevant drill results from the GC Zone, inside the PEA Pit Envelope
Follow this link to view table: http://bit.ly/1BSy1m4
Table 2 - Most relevant drill results from the GC Zone, outside the PEA Pit Envelope
Follow this link to view table: http://bit.ly/1uC1PTJ
Appointment of Director of Sustainable Development
Mason Graphite is also pleased to announce that Mrs. Jacqueline Leroux, Eng. has joined its management team as Director of Sustainable Development. Mrs. Leroux has worked for two major mining projects in the province of Quebec (Project BlackRock and Project Éléonore) where she was in charge of sustainable development, various environmental studies and social relations. She successfully conducted the permitting processes for both projects. Her experience is expected to be invaluable to the development of the Lac Guéret project.
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Flinders comincia a diventare il fornitore ufficiale delle aziende europee 
October 14, 2014 8:45 AM
Flinders signs LOI with ThyssenKrupp Metallurgical Products
VANCOUVER, Oct. 14, 2014 /CNW/ - Flinders Resources Limited ("Flinders" or the "Company") (TSXV: FDR) is pleased to provide an update on the marketing of the Woxna flake graphite product. Flinders has signed a Letter of Intent ("LOI") with ThyssenKrupp Metallurgical Products, a daughter company of industrial conglomerate ThyssenKrupp. This LOI is for up to 20,000 – 50,000 tonnes of Woxna flake graphite, in a defined exclusive territory, over the next 10 years with options to increase this as required in the future. The flake graphite specification is in line with Woxna graphite products and will allow the increase of production rates to meet this and future demand.
The strategic 10 year agreement calls for the supply of 2,000 to 5,000 tonnes of Woxna flake graphite concentrate per annum. The products will be fine, medium and large flake graphite concentrate. Due to the confidential nature of the LOI the specifics such as price, transport and product specifications are not disclosed in this news release.
Blair Way, President & CEO states, "I am very pleased to announce this first significant agreement as it is the result of our marketing efforts over the past year and is a major step in growing our business. As a prominent producer in Europe, Flinders is well positioned in the graphite sector, with the ability to fill consumer needs and provide a sustainable European alternative to Chinese supply."
October 14, 2014 8:45 AM
Flinders signs LOI with ThyssenKrupp Metallurgical Products
VANCOUVER, Oct. 14, 2014 /CNW/ - Flinders Resources Limited ("Flinders" or the "Company") (TSXV: FDR) is pleased to provide an update on the marketing of the Woxna flake graphite product. Flinders has signed a Letter of Intent ("LOI") with ThyssenKrupp Metallurgical Products, a daughter company of industrial conglomerate ThyssenKrupp. This LOI is for up to 20,000 – 50,000 tonnes of Woxna flake graphite, in a defined exclusive territory, over the next 10 years with options to increase this as required in the future. The flake graphite specification is in line with Woxna graphite products and will allow the increase of production rates to meet this and future demand.
The strategic 10 year agreement calls for the supply of 2,000 to 5,000 tonnes of Woxna flake graphite concentrate per annum. The products will be fine, medium and large flake graphite concentrate. Due to the confidential nature of the LOI the specifics such as price, transport and product specifications are not disclosed in this news release.
Blair Way, President & CEO states, "I am very pleased to announce this first significant agreement as it is the result of our marketing efforts over the past year and is a major step in growing our business. As a prominent producer in Europe, Flinders is well positioned in the graphite sector, with the ability to fill consumer needs and provide a sustainable European alternative to Chinese supply."
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Flinders comincia a diventare il fornitore ufficiale delle aziende europee
October 14, 2014 8:45 AM
Flinders signs LOI with ThyssenKrupp Metallurgical Products
VANCOUVER, Oct. 14, 2014 /CNW/ - Flinders Resources Limited ("Flinders" or the "Company") (TSXV: FDR) is pleased to provide an update on the marketing of the Woxna flake graphite product. Flinders has signed a Letter of Intent ("LOI") with ThyssenKrupp Metallurgical Products, a daughter company of industrial conglomerate ThyssenKrupp. This LOI is for up to 20,000 – 50,000 tonnes of Woxna flake graphite, in a defined exclusive territory, over the next 10 years with options to increase this as required in the future. The flake graphite specification is in line with Woxna graphite products and will allow the increase of production rates to meet this and future demand.
The strategic 10 year agreement calls for the supply of 2,000 to 5,000 tonnes of Woxna flake graphite concentrate per annum. The products will be fine, medium and large flake graphite concentrate. Due to the confidential nature of the LOI the specifics such as price, transport and product specifications are not disclosed in this news release.
Blair Way, President & CEO states, "I am very pleased to announce this first significant agreement as it is the result of our marketing efforts over the past year and is a major step in growing our business. As a prominent producer in Europe, Flinders is well positioned in the graphite sector, with the ability to fill consumer needs and provide a sustainable European alternative to Chinese supply."
Un vero peccato che non ci dicano a che prezzo hanno venduto la grafite; il prezzo è infatti la base di tutto per capire se la miniera è profittevole oppure se non rende.
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Crollo di Mason Graphite: -13% senza notizie negative, davvero strano.
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Massacro su tutta la linea; lacrime e sangue.
renna63
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non oggi
ottimo recupero oggi e ancora meglio se domani chiude sulla sma 50 settimanale
vediamo però che è ancora lunga.....
Allegati
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non oggi
ottimo recupero oggi e ancora meglio se domani chiude sulla sma 50 settimanale
vediamo però che è ancora lunga.....
In effetti ha fatto una fiammata, che poi in gran parte si è subito spenta; certo che la quota di 1 dollaro che aveva raggiunto poco tempo fa, è ancora lontanissima.
Dopo il contratto con la ThyssenKrupp mi aspettavo un ben altro rialzo.
Va bene, vorrà dire che aspetterò ancora.
renna63
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che ci sia da aspettare è poco ma sicuro però le notizie buone non mancano su FDR
graficamente ha fatto un bel recupero e anche se ha rintracciato un po in chiusura ieri sera, sul settimanale sta andando a disegnare una bella candela che lascia positivi.....per sbaglio anche tu aspetti i 3
graficamente ha fatto un bel recupero e anche se ha rintracciato un po in chiusura ieri sera, sul settimanale sta andando a disegnare una bella candela che lascia positivi.....per sbaglio anche tu aspetti i 3
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che ci sia da aspettare è poco ma sicuro però le notizie buone non mancano su FDR
graficamente ha fatto un bel recupero e anche se ha rintracciato un po in chiusura ieri sera, sul settimanale sta andando a disegnare una bella candela che lascia positivi.....per sbaglio anche tu aspetti i 3
Non mi sono ancora prefissato una cifra; prima voglio vedere a che prezzo vendono la grafite svedese, per farmi un'idea degli utili che andrà a realizzare.
3 $ comunque mi sembrano un po' troppi.
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Focus Graphite Confirms Significant Mineralization at Depth Below a Discovery of 88.5 Metres Grading 12.82% Graphitic Carbon at its Lac Tetepisca Project
Metallurgical Results Show an average of 94.7% Total Carbon in Plus 200 Mesh Flake, Including 97.7% Total Carbon for Plus 80 Mesh Flake; Similarities in Carbon Content to Focus' Lac Knife Deposit
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Focus Graphite Inc.
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OTTAWA, ONTARIO--(Marketwired - Oct 20, 2014) - Focus Graphite Inc. ("Focus" or the "Company") (TSX VENTURE:FMS)(FCSMF)(FKC.F) is pleased to announce that significant widths of graphitic mineralization ranging from 95 to 110 meters in thickness* were intersected in a new zone at its wholly owned Lac Tétépisca Project ("the Project") southwest of the Manicouagan reservoir in Québec.
Four fences of holes were spaced 200 metres apart, covering a 600-metre strike length of this new zone in a drill program designed to test surface mineralization found in trenches down to a vertical depth of approximately 100 metres.
The "Manicouagan-Ouest graphitic corridor" was discovered by Focus in 2012 and then exposed and channel sampled in two trenches in the fall of 2013. Assays up to 88.5 m @ 12.82 % graphitic carbon ("Cg") and 84 m @ 11 % Cg were obtained. The 2014 drill hole assay results are pending.
Preliminary metallurgical characterization of a 10kg composite sample achieved a carbon content averaging 94.7% total carbon ("Ct") for all flake above 200 mesh, including 97.7% Ct for plus 80 mesh flake - a quality that is critical to the lithium ion battery market. The concentrate was produced by only a three-stage cleaner flotation test. This suggests that the impurities are loosely attached to the surface and perimeter of the flakes and are not embedded within the graphite mineral layers of individual flakes, similar to what has been shown at Lac Knife. The concentrate grades could be further improved through secondary polishing and cleaning as was shown to be the case with the Lac Knife concentrate.
This summer Abitibi Geophysics of Val-d'Or, Québec, completed a combined magnetic-electromagnetic ground IMAGEM geophysical survey that covered 47 km of grid-lines over the "Manicouagan Ouest graphitic corridor". This time domain IMAGEM geophysical system has a high spatial resolution to allow for a more detailed analysis of the EM conductors within the anomalous zone.
The graphitic corridor is outlined by EM anomalies that are very well explained by the trenching and drilling results, and the drill intercepts correlate very well with EM anomaly boundary. The discovery zone that was drilled has a geophysical signature that extends for more than 200 m to the northeast and over 700 m to the southwest for a total strike length of 1500 metres, and it is also open at depth.
Don Baxter, P.Eng., President and COO of Focus Graphite said: "We are very excited about these drilling results that confirm significant widths of mineralization at depth and the potential that this property may hold. Together with the positive, preliminary metallurgical test results yielding high carbon content of medium and fine flakes, our Lac Tétépisca project is very promising. So far it compares favourably in terms of length, width and grade to our Lac Knife graphite deposit."
"Furthermore," Mr. Baxter said, "We are able to apply our operational and metallurgical experience, and what we have learned from developing the Lac Knife spherical graphite to the Lac Tetepisca project. Early indications are that it may produce a similar high quality product. At Lac Knife we have shown that we can take the less desirable finer sized flake concentrates and transform them into a 98% carbon concentrate that is potentially higher valued. This product is in high demand for lithium ion batteries.
"Tetepisca's fine flake fraction shows similar qualities to what we have experienced at Lac Knife. Further tests are warranted, as this gives Focus a second option to enhance the Company's mid-term growth profile and show a potential for a larger quantity of spherical graphite. However, our near term objective remains Lac Knife's project financing and development," Mr. Baxter said.
* Intersections of graphitic mineralization are expressed as core length, however the drill holes crosscut the envelope of the mineralized zone strike and dip at a high angle.
2013 Trenching Program
In the fall 2013 two trenches (MO-TR-01 and MO-TR-02) that measured 175 and 167 m in length respectively, tested a portion of the Manicouagan-Ouest graphitic corridor. Assays results from these trenches are listed in Table 1 below:
TABLE 1: 2013 TRENCHING PROGRAM RESULTS
Trench Azimuth Total
Length Intercepts From To Intersection
Length Cg
(m) (m) (m) (m)** (%)
MO-TR-01 N 128 175 Intersection 78.0 162.0 84.0 11.01
Including 78.0 127.5 49.5 15.03
Intersection 39.0 45.0 6.0 6.49
MO-TR-02 N 128 167 Intersection 45.0 133.5 88.5 12.82
Including 69.0 78.0 9.0 16.51
Including 94.5 133.5 39.0 18.04
** Intersections are not true thicknesses but expressed as channel sample lengths. However, the trenches crosscut the strike of the mineralized zone envelope at a high angle. Mineralized Intersections are calculated with Cg > 5% over a minimum of 6 m; maximum internal dilution was 3 m; there is no external dilution considered.
Trenches are perpendicular (azimuth N128) to the EM corridor and spaced 225 m apart. A total of 104 representative, channel samples (1.5 m long), from trench MO-TR-01 and 98 samples from trench MO-TR-02 were collected using a rock saw and shipped to IOS Services Géoscientifiques ("IOS") sample preparation facilities in Chicoutimi, Québec.
The prepared samples were sent to ALS Minerals in Vancouver for graphitic carbon (Cg) and total sulphide analysis using LECO induction. One of every three samples was also sent to ALS for a 48 multi-element analysis using ICP methods.
With respect to the QA/QC program, blanks, standards and duplicates were introduced, representing roughly 15% of the analyses. A map showing the location of the trenches and the drill holes is available on the Company's website at Focus Graphite.
Metallurgical and Mineralogical Studies
With an objective to characterize the mineralization, Focus awarded a contract to conduct preliminary metallurgical characterization to SGS Canada Inc., of Lakefield, Ontario. One 10 Kg composite sample underwent a test program to provide an indication of flake size distribution that can be obtained in a graphite concentrate by means of standard mineral processing methods.
The results were very good taking into account a head grade of 20% graphitic carbon as well as an intermediate combined 3rd cleaner concentrate grade of 91.8 % total carbon analysis and the good metallurgical response after only 3 cleaner stages. Further, the carbon recovery into the 3rd Cleaner concentrate was very good at 94.2%, especially when taking into account that these results were obtained in an open circuit cleaner test and not a locked cycle flotation test with internal circulation of the intermediate cleaner flotation tailings.
Also worth noting is that only a coarse primary grind will be required suggested by the "Rougher" tails yielding a size distribution with a P80 of 340 microns and a combined carbon recovery of 98.1% into the flash and rougher concentrate.
The graphite recovery into combined rougher and flash flotation concentrate is expected to be even higher than 98.1%, as the rougher tails would contain the majority of the carbonate and organic carbon material, which are included in the total carbon assay. Hence, a primary grind of 500 microns or even coarser may be possible without encountering excessive graphite losses and possible flake damage.
The very high carbon content grade achieved in this preliminary cleaner flotation test suggests that the impurities are attached to the surface of the flakes and are not embedded within the graphite mineralogical layers. It is expected that the concentrate grades could be further improved through secondary polishing and cleaning. This was shown to be the case with the Lac Knife concentrate.
TABLE 2: Lac Tetepisca Project: Orientation Metallurgical Results
Size by Size Analysis of 3rd Cleaner Concentrate
Weight Weight Assays Distribution C
(g) (%) % C total %
Product Concentrate total***
+48 mesh (+300 microns) 0.5 0.1 0.0
+65 mesh (+212 microns) 11.0 2.6 95.8 2.8
+80 mesh (+180 microns) 15.9 3.8 97.7 4.1
+100 mesh (+150 microns) 26.9 6.5 96.1 6.8
+150 mesh (+106 microns) 74.0 17.8 96.0 18.6
+200 mesh (+75 microns) 78.4 18.9 92.2 18.9
+325 mesh (+45 microns) 105.3 25.3 89.6 24.7
-325 mesh (-45 microns) 103.7 24.9 88.8 24.1
Total Concentrate 415.7 100.0 91.8 100.0
* All carbon analyses were performed by SGS Canada Inc. ("SGS") and are reported as total carbon ("Ct"). The analytical methods that were used to determine the metallurgical results included total carbon analysis by Leco on the final concentrates.
Focus also had IOS Services Géoscientifiques of Chicoutimi, Québec conduct a petrographic mineralogical study of two trench grab samples from the Lac Tétépisca project, with the objective to characterize the general in-situ content of large graphite flakes within the mineralization. It should be noted that the variability between small samples can be considerable in graphite deposits. Visual observations as well these two separate grab samples indicate good large flake content.
The report included microscopic observations of both samples that contain approximately 25% graphite. The study indicated a high proportion of large and very large graphite flakes (+48 mesh or > 200 microns).
The high large flake content observed in the two samples was 80% and 74% respectively. This contrasts the lower large flake content observed in the concentrate produced by the bench scale (10 kg) preliminary metallurgical tests. This further supports the probability that only a coarse primary grind would potentially be required to liberate the large graphite flakes from the mineralized host rocks. More work will be undertaken in this regard.
2014 Exploration Drilling Campaign
Exploration drilling included 1875 m of drilling in 16 drill holes oriented perpendicular to the strike of the kilometric EM conductor defined by a combined MAG-EM airborne geophysical survey conducted in the spring of 2013. The periphery of the zone was more accurately outlined by ground geophysics using a Beep Mat instrument in the summer of 2013 and the MAG-IMAGEM ground survey completed the following summer in 2014.
IOS supervised the drilling campaign that was performed by Forage Rouillier of Amos, Québec. Drill hole collar locations and information are listed in Table 3 below.
A drill hole location map that includes the EM anomalous zone boundary as well as the trench locations is available on the Company's website at Focus Graphite.
TABLE 3: DRILL HOLE COLLAR LOCATIONS AND ORIENTATION
DRILLHOLE X UTM-NAD83 Y UTM NAD83 Azimuth Plunge Length
LT-14-01 494707 5676091 302 -45 126
LT-14-02 494658 5676122 302 -45 126
LT-14-03 494591 5676169 302 -45 126
LT-14-04 494621 5675912 302 -45 144
LT-14-05 494555 5675946 302 -45 126
LT-14-06 494425 5676047 302 -45 60
LT-14-07 494483 5675991 302 -45 126
LT-14-08 494521 5675737 302 -45 153
LT-14-09 494286 5675859 302 -45 60
LT-14-10 494359 5675838 302 -45 126
LT-14-11 494430 5675795 302 -45 119
LT-14-12 494401 5675579 302 -45 144
LT-14-13 494328 5675624 302 -45 114
LT-14-14 494269 5675650 302 -45 114
LT-14-15 494205 5675699 302 -45 60
LT-14-16 494428 5675629 302 -45 150
About the Lac Tétépisca Graphite Project
The Lac Tétépisca project is wholly owned by the Company and is located to the southwest of the Manicouagan reservoir in Québec. Focus acquired 100% of the Project's mineral rights from a third party in 2011.
The project consists of 102 contiguous map-designated claims ("CDC") covering 5,503.08 ha. The Project is located in the southwest Manicouagan reservoir area, 234 km north-northwest of Baie-Comeau, in the Côte-Nord administrative region of Québec.
The Project is accessible year-round by a network of logging roads that connect to Highway 389 that connects Baie-Comeau on the Coast to the Project area.
The Lac Tétépisca project is located in the Grenville geological Province of Québec. The Manicouagan-Ouest graphitic corridor is located within the Nault Formation of meta-sedimentary rocks and is composed of rocks that are fine to medium grained quartz-feldspar-biotite paragneisses and schists with local occurrences of garnet and kyanite.
Fine to coarse graphite flakes and associated sulphides make up 10% to 20% of the rocks, with more than 50% in strongly mineralized zones.
A map of the Lac Tétépisca project showing the location of the Manicouagan-Ouest graphite bearing corridor is available on the Company's website at Focus Graphite.
Metallurgical Results Show an average of 94.7% Total Carbon in Plus 200 Mesh Flake, Including 97.7% Total Carbon for Plus 80 Mesh Flake; Similarities in Carbon Content to Focus' Lac Knife Deposit
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Marketwired
Focus Graphite Inc.
10 hours ago
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OTTAWA, ONTARIO--(Marketwired - Oct 20, 2014) - Focus Graphite Inc. ("Focus" or the "Company") (TSX VENTURE:FMS)(FCSMF)(FKC.F) is pleased to announce that significant widths of graphitic mineralization ranging from 95 to 110 meters in thickness* were intersected in a new zone at its wholly owned Lac Tétépisca Project ("the Project") southwest of the Manicouagan reservoir in Québec.
Four fences of holes were spaced 200 metres apart, covering a 600-metre strike length of this new zone in a drill program designed to test surface mineralization found in trenches down to a vertical depth of approximately 100 metres.
The "Manicouagan-Ouest graphitic corridor" was discovered by Focus in 2012 and then exposed and channel sampled in two trenches in the fall of 2013. Assays up to 88.5 m @ 12.82 % graphitic carbon ("Cg") and 84 m @ 11 % Cg were obtained. The 2014 drill hole assay results are pending.
Preliminary metallurgical characterization of a 10kg composite sample achieved a carbon content averaging 94.7% total carbon ("Ct") for all flake above 200 mesh, including 97.7% Ct for plus 80 mesh flake - a quality that is critical to the lithium ion battery market. The concentrate was produced by only a three-stage cleaner flotation test. This suggests that the impurities are loosely attached to the surface and perimeter of the flakes and are not embedded within the graphite mineral layers of individual flakes, similar to what has been shown at Lac Knife. The concentrate grades could be further improved through secondary polishing and cleaning as was shown to be the case with the Lac Knife concentrate.
This summer Abitibi Geophysics of Val-d'Or, Québec, completed a combined magnetic-electromagnetic ground IMAGEM geophysical survey that covered 47 km of grid-lines over the "Manicouagan Ouest graphitic corridor". This time domain IMAGEM geophysical system has a high spatial resolution to allow for a more detailed analysis of the EM conductors within the anomalous zone.
The graphitic corridor is outlined by EM anomalies that are very well explained by the trenching and drilling results, and the drill intercepts correlate very well with EM anomaly boundary. The discovery zone that was drilled has a geophysical signature that extends for more than 200 m to the northeast and over 700 m to the southwest for a total strike length of 1500 metres, and it is also open at depth.
Don Baxter, P.Eng., President and COO of Focus Graphite said: "We are very excited about these drilling results that confirm significant widths of mineralization at depth and the potential that this property may hold. Together with the positive, preliminary metallurgical test results yielding high carbon content of medium and fine flakes, our Lac Tétépisca project is very promising. So far it compares favourably in terms of length, width and grade to our Lac Knife graphite deposit."
"Furthermore," Mr. Baxter said, "We are able to apply our operational and metallurgical experience, and what we have learned from developing the Lac Knife spherical graphite to the Lac Tetepisca project. Early indications are that it may produce a similar high quality product. At Lac Knife we have shown that we can take the less desirable finer sized flake concentrates and transform them into a 98% carbon concentrate that is potentially higher valued. This product is in high demand for lithium ion batteries.
"Tetepisca's fine flake fraction shows similar qualities to what we have experienced at Lac Knife. Further tests are warranted, as this gives Focus a second option to enhance the Company's mid-term growth profile and show a potential for a larger quantity of spherical graphite. However, our near term objective remains Lac Knife's project financing and development," Mr. Baxter said.
* Intersections of graphitic mineralization are expressed as core length, however the drill holes crosscut the envelope of the mineralized zone strike and dip at a high angle.
2013 Trenching Program
In the fall 2013 two trenches (MO-TR-01 and MO-TR-02) that measured 175 and 167 m in length respectively, tested a portion of the Manicouagan-Ouest graphitic corridor. Assays results from these trenches are listed in Table 1 below:
TABLE 1: 2013 TRENCHING PROGRAM RESULTS
Trench Azimuth Total
Length Intercepts From To Intersection
Length Cg
(m) (m) (m) (m)** (%)
MO-TR-01 N 128 175 Intersection 78.0 162.0 84.0 11.01
Including 78.0 127.5 49.5 15.03
Intersection 39.0 45.0 6.0 6.49
MO-TR-02 N 128 167 Intersection 45.0 133.5 88.5 12.82
Including 69.0 78.0 9.0 16.51
Including 94.5 133.5 39.0 18.04
** Intersections are not true thicknesses but expressed as channel sample lengths. However, the trenches crosscut the strike of the mineralized zone envelope at a high angle. Mineralized Intersections are calculated with Cg > 5% over a minimum of 6 m; maximum internal dilution was 3 m; there is no external dilution considered.
Trenches are perpendicular (azimuth N128) to the EM corridor and spaced 225 m apart. A total of 104 representative, channel samples (1.5 m long), from trench MO-TR-01 and 98 samples from trench MO-TR-02 were collected using a rock saw and shipped to IOS Services Géoscientifiques ("IOS") sample preparation facilities in Chicoutimi, Québec.
The prepared samples were sent to ALS Minerals in Vancouver for graphitic carbon (Cg) and total sulphide analysis using LECO induction. One of every three samples was also sent to ALS for a 48 multi-element analysis using ICP methods.
With respect to the QA/QC program, blanks, standards and duplicates were introduced, representing roughly 15% of the analyses. A map showing the location of the trenches and the drill holes is available on the Company's website at Focus Graphite.
Metallurgical and Mineralogical Studies
With an objective to characterize the mineralization, Focus awarded a contract to conduct preliminary metallurgical characterization to SGS Canada Inc., of Lakefield, Ontario. One 10 Kg composite sample underwent a test program to provide an indication of flake size distribution that can be obtained in a graphite concentrate by means of standard mineral processing methods.
The results were very good taking into account a head grade of 20% graphitic carbon as well as an intermediate combined 3rd cleaner concentrate grade of 91.8 % total carbon analysis and the good metallurgical response after only 3 cleaner stages. Further, the carbon recovery into the 3rd Cleaner concentrate was very good at 94.2%, especially when taking into account that these results were obtained in an open circuit cleaner test and not a locked cycle flotation test with internal circulation of the intermediate cleaner flotation tailings.
Also worth noting is that only a coarse primary grind will be required suggested by the "Rougher" tails yielding a size distribution with a P80 of 340 microns and a combined carbon recovery of 98.1% into the flash and rougher concentrate.
The graphite recovery into combined rougher and flash flotation concentrate is expected to be even higher than 98.1%, as the rougher tails would contain the majority of the carbonate and organic carbon material, which are included in the total carbon assay. Hence, a primary grind of 500 microns or even coarser may be possible without encountering excessive graphite losses and possible flake damage.
The very high carbon content grade achieved in this preliminary cleaner flotation test suggests that the impurities are attached to the surface of the flakes and are not embedded within the graphite mineralogical layers. It is expected that the concentrate grades could be further improved through secondary polishing and cleaning. This was shown to be the case with the Lac Knife concentrate.
TABLE 2: Lac Tetepisca Project: Orientation Metallurgical Results
Size by Size Analysis of 3rd Cleaner Concentrate
Weight Weight Assays Distribution C
(g) (%) % C total %
Product Concentrate total***
+48 mesh (+300 microns) 0.5 0.1 0.0
+65 mesh (+212 microns) 11.0 2.6 95.8 2.8
+80 mesh (+180 microns) 15.9 3.8 97.7 4.1
+100 mesh (+150 microns) 26.9 6.5 96.1 6.8
+150 mesh (+106 microns) 74.0 17.8 96.0 18.6
+200 mesh (+75 microns) 78.4 18.9 92.2 18.9
+325 mesh (+45 microns) 105.3 25.3 89.6 24.7
-325 mesh (-45 microns) 103.7 24.9 88.8 24.1
Total Concentrate 415.7 100.0 91.8 100.0
* All carbon analyses were performed by SGS Canada Inc. ("SGS") and are reported as total carbon ("Ct"). The analytical methods that were used to determine the metallurgical results included total carbon analysis by Leco on the final concentrates.
Focus also had IOS Services Géoscientifiques of Chicoutimi, Québec conduct a petrographic mineralogical study of two trench grab samples from the Lac Tétépisca project, with the objective to characterize the general in-situ content of large graphite flakes within the mineralization. It should be noted that the variability between small samples can be considerable in graphite deposits. Visual observations as well these two separate grab samples indicate good large flake content.
The report included microscopic observations of both samples that contain approximately 25% graphite. The study indicated a high proportion of large and very large graphite flakes (+48 mesh or > 200 microns).
The high large flake content observed in the two samples was 80% and 74% respectively. This contrasts the lower large flake content observed in the concentrate produced by the bench scale (10 kg) preliminary metallurgical tests. This further supports the probability that only a coarse primary grind would potentially be required to liberate the large graphite flakes from the mineralized host rocks. More work will be undertaken in this regard.
2014 Exploration Drilling Campaign
Exploration drilling included 1875 m of drilling in 16 drill holes oriented perpendicular to the strike of the kilometric EM conductor defined by a combined MAG-EM airborne geophysical survey conducted in the spring of 2013. The periphery of the zone was more accurately outlined by ground geophysics using a Beep Mat instrument in the summer of 2013 and the MAG-IMAGEM ground survey completed the following summer in 2014.
IOS supervised the drilling campaign that was performed by Forage Rouillier of Amos, Québec. Drill hole collar locations and information are listed in Table 3 below.
A drill hole location map that includes the EM anomalous zone boundary as well as the trench locations is available on the Company's website at Focus Graphite.
TABLE 3: DRILL HOLE COLLAR LOCATIONS AND ORIENTATION
DRILLHOLE X UTM-NAD83 Y UTM NAD83 Azimuth Plunge Length
LT-14-01 494707 5676091 302 -45 126
LT-14-02 494658 5676122 302 -45 126
LT-14-03 494591 5676169 302 -45 126
LT-14-04 494621 5675912 302 -45 144
LT-14-05 494555 5675946 302 -45 126
LT-14-06 494425 5676047 302 -45 60
LT-14-07 494483 5675991 302 -45 126
LT-14-08 494521 5675737 302 -45 153
LT-14-09 494286 5675859 302 -45 60
LT-14-10 494359 5675838 302 -45 126
LT-14-11 494430 5675795 302 -45 119
LT-14-12 494401 5675579 302 -45 144
LT-14-13 494328 5675624 302 -45 114
LT-14-14 494269 5675650 302 -45 114
LT-14-15 494205 5675699 302 -45 60
LT-14-16 494428 5675629 302 -45 150
About the Lac Tétépisca Graphite Project
The Lac Tétépisca project is wholly owned by the Company and is located to the southwest of the Manicouagan reservoir in Québec. Focus acquired 100% of the Project's mineral rights from a third party in 2011.
The project consists of 102 contiguous map-designated claims ("CDC") covering 5,503.08 ha. The Project is located in the southwest Manicouagan reservoir area, 234 km north-northwest of Baie-Comeau, in the Côte-Nord administrative region of Québec.
The Project is accessible year-round by a network of logging roads that connect to Highway 389 that connects Baie-Comeau on the Coast to the Project area.
The Lac Tétépisca project is located in the Grenville geological Province of Québec. The Manicouagan-Ouest graphitic corridor is located within the Nault Formation of meta-sedimentary rocks and is composed of rocks that are fine to medium grained quartz-feldspar-biotite paragneisses and schists with local occurrences of garnet and kyanite.
Fine to coarse graphite flakes and associated sulphides make up 10% to 20% of the rocks, with more than 50% in strongly mineralized zones.
A map of the Lac Tétépisca project showing the location of the Manicouagan-Ouest graphite bearing corridor is available on the Company's website at Focus Graphite.
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MONTREAL, QUEBEC--(Marketwired - Oct 21, 2014) - Mason Graphite Inc. ("Mason Graphite" or the "Company") (TSX VENTURE:LLG)(MGPHF) is pleased to announce that a pilot plant test for the Lac Guéret graphite project has been initiated at COREM's research facility in Quebec City. The operations are under the supervision of engineering firm Soutex, also based in Quebec City.
The pilot program is planned to operate for a six week period, during which COREM will test a bulk sample of approximately 60 tonnes of graphite mineralization obtained from Mason Graphite's Lac Guéret property, located in northeastern Quebec. The average head grade of the bulk sample is 29.1% Cg. The pilot program is designed to test the concentration process developed at the laboratory level by Mason Graphite, COREM and Soutex.
Samples collected during the pilot will serve multiple purposes, including:
•Testing of additional processing technologies;
•Characterization for the upcoming environmental impact assessment;
•Testing to create value added products such as spherical graphite used in lithium-ion batteries (these tests will be part of a complete technical study program for value added graphite products); and
•Testing with key potential customers.
The results of the pilot plant program will also be used for the upcoming feasibility study.
Qualified Person
Jean L'Heureux, Eng., Mason Graphite's Executive Vice-President Process Development and a Qualified Person as defined by National Instrument 43-101, has reviewed and approved the scientific and technical content of this press release.
The pilot program is planned to operate for a six week period, during which COREM will test a bulk sample of approximately 60 tonnes of graphite mineralization obtained from Mason Graphite's Lac Guéret property, located in northeastern Quebec. The average head grade of the bulk sample is 29.1% Cg. The pilot program is designed to test the concentration process developed at the laboratory level by Mason Graphite, COREM and Soutex.
Samples collected during the pilot will serve multiple purposes, including:
•Testing of additional processing technologies;
•Characterization for the upcoming environmental impact assessment;
•Testing to create value added products such as spherical graphite used in lithium-ion batteries (these tests will be part of a complete technical study program for value added graphite products); and
•Testing with key potential customers.
The results of the pilot plant program will also be used for the upcoming feasibility study.
Qualified Person
Jean L'Heureux, Eng., Mason Graphite's Executive Vice-President Process Development and a Qualified Person as defined by National Instrument 43-101, has reviewed and approved the scientific and technical content of this press release.
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Brutte notizie
La nostra vita quotidiana dipende sempre di più da una pletora di batterie che servono ad alimentare smartphone, tablet e mille altri dispositivi. Chi di noi non ha mai sognato di avere batterie che durano in eterno o quasi?
Oggi la soluzione potrebbe essere a portata di mano. Un gruppo di ricercatori della Nanyang Technology University di Singapore ha sviluppato una batteria che raggiunge il 70% di carica in appena due minuti, un tempo che sarebbe l'ideale per la ricarica delle auto elettriche, per esempio.
La vita utile della batteria, agli ioni di litio, è stata stimata in una ventina d'anni. I cicli di carica possibili sarebbero 10.000, ciò significa che una batteria si può ricaricare almeno 10.000 volte prima che la durata si riduca.
Qual è la magia alla base di questa nuova tecnologia? Semplicemente l'impiego nell'anodo, al posto della grafite, di un gel composto da nanotubi di diossido di titanio che velocizzano il flusso di elettroni all'interno e all'esterno della batteria.
I nanotubi, di facile produzione, hanno uno spessore un migliaio di volte più sottile del diametro di un capello umano.
Queste miracolose batterie probabilmente entreranno in produzione su vasta scala entro i prossimi due anni. Pare che una società, il cui nome è ancora misterioso, abbia già comprato la licenza della tecnologia.
volftp.blog.tiscali.it
14 ottobre 2014
avrei però dei quesiti in merito:
1) quanto costa il diossido di titanio ?
2) c'è abbastanza diossido di titanio per tutte le applicazioni delle batterie ?
La nostra vita quotidiana dipende sempre di più da una pletora di batterie che servono ad alimentare smartphone, tablet e mille altri dispositivi. Chi di noi non ha mai sognato di avere batterie che durano in eterno o quasi?
Oggi la soluzione potrebbe essere a portata di mano. Un gruppo di ricercatori della Nanyang Technology University di Singapore ha sviluppato una batteria che raggiunge il 70% di carica in appena due minuti, un tempo che sarebbe l'ideale per la ricarica delle auto elettriche, per esempio.
La vita utile della batteria, agli ioni di litio, è stata stimata in una ventina d'anni. I cicli di carica possibili sarebbero 10.000, ciò significa che una batteria si può ricaricare almeno 10.000 volte prima che la durata si riduca.
Qual è la magia alla base di questa nuova tecnologia? Semplicemente l'impiego nell'anodo, al posto della grafite, di un gel composto da nanotubi di diossido di titanio che velocizzano il flusso di elettroni all'interno e all'esterno della batteria.
I nanotubi, di facile produzione, hanno uno spessore un migliaio di volte più sottile del diametro di un capello umano.
Queste miracolose batterie probabilmente entreranno in produzione su vasta scala entro i prossimi due anni. Pare che una società, il cui nome è ancora misterioso, abbia già comprato la licenza della tecnologia.
volftp.blog.tiscali.it
14 ottobre 2014
avrei però dei quesiti in merito:
1) quanto costa il diossido di titanio ?
2) c'è abbastanza diossido di titanio per tutte le applicazioni delle batterie ?
Ultima modifica:
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Nelle scorse ore abbiamo scoperto un progetto molto interessante portato avanti da una serie di ricercatori della Nanyang Technology University che ci è sembrato importante parlarvene. Si tratta di un progetto che mira a rivoluzionare l’intera industria delle batterie per dispositivi mobile.
A differenza delle attuali batterie agli ioni di litio, il progetto di questi ricercatori prevede delle batterie ai nanotubi di titanio. Grazie ad una reazione chimica del diossido di titanio che trasforma le classiche molecole sferiche in nanotubi molto sottili (circa 1000 volte più sottili di un capello umano), si riescono ad ottenere principalmente 3 vantaggi:
Possibilità di ricaricare la batteria, da 0 al 70%, in appena 2 minuti. Assoluta fantascienza per le attuali batterie in commercio;
Possibilità di effettuare circa 10.000 cicli di ricarica prima di doverle sostituire. Attualmente le batterie offrono al massimo 500 cicli di ricarica. Questo vuol dire una durata fino anche a 20 anni;
Produzione più economica nel tempo. Una volta aggiornati tutti gli impianti di produzione, produrre questo nuovo tipo di batteria sarebbe più economico rispetto al produrre batterie agli ioni di litio.
Il progetto delle batterie ai nanotubi di titanio è stato già brevettato ma si trova ancora in fase di sviluppo. Per un’arrivo sul mercato, si prevede che occorreranno ancora circa 2 anni (2016).
A differenza delle attuali batterie agli ioni di litio, il progetto di questi ricercatori prevede delle batterie ai nanotubi di titanio. Grazie ad una reazione chimica del diossido di titanio che trasforma le classiche molecole sferiche in nanotubi molto sottili (circa 1000 volte più sottili di un capello umano), si riescono ad ottenere principalmente 3 vantaggi:
Possibilità di ricaricare la batteria, da 0 al 70%, in appena 2 minuti. Assoluta fantascienza per le attuali batterie in commercio;
Possibilità di effettuare circa 10.000 cicli di ricarica prima di doverle sostituire. Attualmente le batterie offrono al massimo 500 cicli di ricarica. Questo vuol dire una durata fino anche a 20 anni;
Produzione più economica nel tempo. Una volta aggiornati tutti gli impianti di produzione, produrre questo nuovo tipo di batteria sarebbe più economico rispetto al produrre batterie agli ioni di litio.
Il progetto delle batterie ai nanotubi di titanio è stato già brevettato ma si trova ancora in fase di sviluppo. Per un’arrivo sul mercato, si prevede che occorreranno ancora circa 2 anni (2016).
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Grafene contro titanio
La super-batteria italiana al grafene che farà correre auto e telefonini
Dura il 25% in più e può ricaricare rapidamente le macchine elettriche. Lo scienziato Pellegrini: per i veicoli rifornimento in minuti invece che ore
di Stefano Agnoli
La chiave di tutto è il grafene: un foglio a due dimensioni dello spessore di un atomo di carbonio, scoperto nel 2004 da due ricercatori russi che nel 2010 hanno vinto il premio Nobel. Ha caratteristiche uniche: è flessibile, impermeabile e, soprattutto per quanto riguarda i ricercatori italiani dell’Istituto di tecnologia, è un conduttore elettrico. Ebbene, lavorando sulla base di queste premesse a Genova hanno messo a punto un prototipo unico al mondo: una batteria che grazie ad un anodo trattato con il grafene garantisce un’efficienza superiore del 25% rispetto a una tradizionale batteria al litio. Un quarto in più di corrente insomma, che può essere utilizzata per alimentare auto elettriche o i vari dispositivi elettronici che utilizzano batterie, dagli smartphone ai tablet ai personal computer. Una tecnologia tutta italiana (con il team genovese di Vittorio Pellegrini e Bruno Scrosati hanno lavorato il Cnr e la Sapienza di Roma), pronta per lo sviluppo industriale e che sta già raccogliendo l’interesse di produttori dell’automotive e di gruppi elettrici, come la Bluecar del gruppo Bollorè e l’Enel.
La notizia «ufficiale» della batteria italiana al grafene sarà diffusa tra pochi giorni da «Nano Letters», una delle bibbie mondiali delle nanotecnologie e dell’elettrochimica. Ciò che i ricercatori italiani hanno fatto è sostituire con procedimenti speciali il grafene alla normale grafite utilizzata per l’anodo di una comune batteria al litio, con il risultato che gli ioni di litio si sono «attaccati» assai più copiosamente al nuovo materiale. Il grafene, detto per inciso, ha tra le sue caratteristiche quella di avere il più elevato rapporto tra superficie e peso: con un solo grammo si possono ricoprire 2.600 metri quadrati. All’Iit hanno trovato il modo di trattarlo in una soluzione, ottenendo una sorta di «inchiostro» che viene poi spalmato sull’elettrodo della batteria. In più, la sua flessibilità e robustezza sono uniche, tanto che colossi come Nokia e Samsung si sono già mossi. Il gruppo coreano ha da tempo messo il suo timbro su touchscreen flessibili per i telefonini. Ora si aprirebbe la prospettiva di estendere la flessibilità anche alle batterie dei cellulari, che potrebbero così essere ripiegati e messi in tasca dopo l’uso. E visto che il grafene non perde le sue proprietà anche con torsioni del 40%, a mettere gli occhi sul materiale è stata anche la Head, che ha chiesto a un’azienda coreana di fornirle il grafene per alleggerire il manico delle sue racchette da tennis e renderle più potenti. Quegli attrezzi sono ora nelle mani di campioni come Novak Djokovic e Maria Sharapova.
Una delle prospettive più interessanti agli occhi europei e italiani, tuttavia, riguarda l’annoso problema di come «immagazzinare» energia in modo efficiente. La diffusione dell’auto elettrica, ad esempio, è frenata dalla scarsa autonomia garantita fino a oggi dalle batterie, e dalla lunghezza dei tempi di ricarica, che vanno dalle 6 alle 8 ore. Il prototipo italiano, dice Pellegrini, «in prospettiva apre la strada allo sviluppo di batterie che si potrebbero ricaricare nell’arco di minuti, non ore». Più energia e tempi ridotti, quindi. Ma quanto costa il grafene, e chi lo produce? A Genova, oggi, i ricercatori dell’Iit si autoproducono un paio di litri al mese di «inchiostro», e un contenitore da un centinaio di millilitri costa tra i 3 e i 400 euro. Diverso sarebbe lavorare su scala industriale: a Como lo fa la Directa Plus, maggior produttore europeo con 30 tonnellate l’anno, che ha stretto accordi con l’Iit. Per una volta un’accoppiata italiana ricerca-industria potrebbe rivelarsi vincente.
La super-batteria italiana al grafene che farà correre auto e telefonini
Dura il 25% in più e può ricaricare rapidamente le macchine elettriche. Lo scienziato Pellegrini: per i veicoli rifornimento in minuti invece che ore
di Stefano Agnoli
La chiave di tutto è il grafene: un foglio a due dimensioni dello spessore di un atomo di carbonio, scoperto nel 2004 da due ricercatori russi che nel 2010 hanno vinto il premio Nobel. Ha caratteristiche uniche: è flessibile, impermeabile e, soprattutto per quanto riguarda i ricercatori italiani dell’Istituto di tecnologia, è un conduttore elettrico. Ebbene, lavorando sulla base di queste premesse a Genova hanno messo a punto un prototipo unico al mondo: una batteria che grazie ad un anodo trattato con il grafene garantisce un’efficienza superiore del 25% rispetto a una tradizionale batteria al litio. Un quarto in più di corrente insomma, che può essere utilizzata per alimentare auto elettriche o i vari dispositivi elettronici che utilizzano batterie, dagli smartphone ai tablet ai personal computer. Una tecnologia tutta italiana (con il team genovese di Vittorio Pellegrini e Bruno Scrosati hanno lavorato il Cnr e la Sapienza di Roma), pronta per lo sviluppo industriale e che sta già raccogliendo l’interesse di produttori dell’automotive e di gruppi elettrici, come la Bluecar del gruppo Bollorè e l’Enel.
La notizia «ufficiale» della batteria italiana al grafene sarà diffusa tra pochi giorni da «Nano Letters», una delle bibbie mondiali delle nanotecnologie e dell’elettrochimica. Ciò che i ricercatori italiani hanno fatto è sostituire con procedimenti speciali il grafene alla normale grafite utilizzata per l’anodo di una comune batteria al litio, con il risultato che gli ioni di litio si sono «attaccati» assai più copiosamente al nuovo materiale. Il grafene, detto per inciso, ha tra le sue caratteristiche quella di avere il più elevato rapporto tra superficie e peso: con un solo grammo si possono ricoprire 2.600 metri quadrati. All’Iit hanno trovato il modo di trattarlo in una soluzione, ottenendo una sorta di «inchiostro» che viene poi spalmato sull’elettrodo della batteria. In più, la sua flessibilità e robustezza sono uniche, tanto che colossi come Nokia e Samsung si sono già mossi. Il gruppo coreano ha da tempo messo il suo timbro su touchscreen flessibili per i telefonini. Ora si aprirebbe la prospettiva di estendere la flessibilità anche alle batterie dei cellulari, che potrebbero così essere ripiegati e messi in tasca dopo l’uso. E visto che il grafene non perde le sue proprietà anche con torsioni del 40%, a mettere gli occhi sul materiale è stata anche la Head, che ha chiesto a un’azienda coreana di fornirle il grafene per alleggerire il manico delle sue racchette da tennis e renderle più potenti. Quegli attrezzi sono ora nelle mani di campioni come Novak Djokovic e Maria Sharapova.
Una delle prospettive più interessanti agli occhi europei e italiani, tuttavia, riguarda l’annoso problema di come «immagazzinare» energia in modo efficiente. La diffusione dell’auto elettrica, ad esempio, è frenata dalla scarsa autonomia garantita fino a oggi dalle batterie, e dalla lunghezza dei tempi di ricarica, che vanno dalle 6 alle 8 ore. Il prototipo italiano, dice Pellegrini, «in prospettiva apre la strada allo sviluppo di batterie che si potrebbero ricaricare nell’arco di minuti, non ore». Più energia e tempi ridotti, quindi. Ma quanto costa il grafene, e chi lo produce? A Genova, oggi, i ricercatori dell’Iit si autoproducono un paio di litri al mese di «inchiostro», e un contenitore da un centinaio di millilitri costa tra i 3 e i 400 euro. Diverso sarebbe lavorare su scala industriale: a Como lo fa la Directa Plus, maggior produttore europeo con 30 tonnellate l’anno, che ha stretto accordi con l’Iit. Per una volta un’accoppiata italiana ricerca-industria potrebbe rivelarsi vincente.