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1. (WO2010017364) LOW COST ROUTES TO HIGH PURITY SILICON AND DERIVATIVES THEREOF
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/017364 International Application No.: PCT/US2009/052965
Publication Date: 11.02.2010 International Filing Date: 06.08.2009
IPC:
C01B 33/037 (2006.01) ,B09B 3/00 (2006.01) ,C22B 7/00 (2006.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33
Silicon; Compounds thereof
02
Silicon
037
Purification
B PERFORMING OPERATIONS; TRANSPORTING
09
DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
B
DISPOSAL OF SOLID WASTE
3
Destroying solid waste or transforming solid waste into something useful or harmless
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7
Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
Applicants:
MAYATERIALS, INC. [US/US]; 1375 Folkstone Ct. Ann Arbor, MI 48105, US (AllExceptUS)
LAINE, Richard, M. [US/US]; US (UsOnly)
KRUG, David, James [US/US]; US (UsOnly)
MARCHAL, Julien, Claudius [US/US]; US (UsOnly)
MCCOLM, Andrew, Stewart [US/US]; US (UsOnly)
Inventors:
LAINE, Richard, M.; US
KRUG, David, James; US
MARCHAL, Julien, Claudius; US
MCCOLM, Andrew, Stewart; US
Priority Data:
61/086,54606.08.2008US
Title (EN) LOW COST ROUTES TO HIGH PURITY SILICON AND DERIVATIVES THEREOF
(FR) VOIES ÉCONOMIQUES D’OBTENTION DE SILICIUM DE GRANDE PURETÉ ET SES DÉRIVÉS
Abstract:
(EN) The present invention is directed to a method for providing an agricultural waste product having amorphous silica, carbon, and impurities; extracting from the agricultural waste product an amount of the impurities; changing the ratio of carbon to silica; and reducing the silica to a high purity silicon (e.g., to photovoltaic silicon).
(FR) La présente invention concerne un procédé consistant à mettre à disposition un déchet agricole contenant de la silice amorphe, du carbone et des impuretés ; extraire du déchet agricole une quantité d'impuretés ; modifier le rapport carbone sur silice ; et réduire la silice pour former un silicium de grande pureté (p. ex. un silicium photovoltaïque).
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2321221US20110206592KR1020110049852