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1. (WO2015126262) PROCESS FOR THE PRODUCTION OF SILICON DIOXIDE PARTICLES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2015/126262    International Application No.:    PCT/NO2015/050039
Publication Date: 27.08.2015 International Filing Date: 23.02.2015
IPC:
C01B 33/18 (2006.01)
Applicants: ELKEM AS [NO/NO]; Drammensveien 169 N-0277 Oslo (NO)
Inventors: MYHRE, Bjørn; (NO).
DÅSTØL, Magne; (NO)
Agent: ZACCO NORWAY AS; P.O. BOx 2003 Vika N-0125 Oslo (NO)
Priority Data:
20140237 24.02.2014 NO
Title (EN) PROCESS FOR THE PRODUCTION OF SILICON DIOXIDE PARTICLES
(FR) PROCÉDÉ DE PRODUCTION DE PARTICULES DE DIOXYDE DE SILICIUM
Abstract: front page image
(EN)The present invention relates to a process for producing spherical submicron particles of amorphous silicon dioxide, in which silicon dioxide and a reducing agent is injected into a reaction vessel of zirconium oxide in molten state, said zirconium oxide is serving as a heat reservoir, in which silicon dioxide reacts with the reducing agent producing a silicon-sub-oxide vapour, said silicon-sub-oxide vapour is oxidised into said spherical submicron silicon oxide particles.
(FR)Cette invention concerne un procédé de production de particules submicroniques sphériques de dioxyde de silicium amorphe, consistant à injecter du dioxyde de silicium et un agent de réduction dans un réacteur d'oxyde de zirconium à l'état fondu, ledit oxyde de zirconium servant de réservoir thermique, dans lequel le dioxyde de silicium réagit avec l'agent de réduction pour produire une vapeur de sous-oxyde de silicium, ladite vapeur de sous-oxyde de silicium étant convertie par oxydation en lesdites particules submicroniques sphériques de dioxyde de silicium.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)