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1. WO2007106860 - METHOD FOR MAKING SILICON FOR SOLAR CELLS AND OTHER APPLICATIONS

Publication Number WO/2007/106860
Publication Date 20.09.2007
International Application No. PCT/US2007/063985
International Filing Date 14.03.2007
IPC
C01B 33/02 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33Silicon; Compounds thereof
02Silicon
CPC
C01B 33/023
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
33Silicon; Compounds thereof
02Silicon
021Preparation
023by reduction of silica or ; free; silica-containing material
C01B 33/025
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
33Silicon; Compounds thereof
02Silicon
021Preparation
023by reduction of silica or ; free; silica-containing material
025with carbon or a solid carbonaceous material, i.e. carbo-thermal process
C01B 33/039
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
33Silicon; Compounds thereof
02Silicon
037Purification
039by conversion of the silicon into a compound, optional purification of the compound, and reconversion into silicon
Applicants
  • REACTION SCIENCES, INC. [US]/[US] (AllExceptUS)
  • AMENDOLA, Steven [US]/[US] (UsOnly)
Inventors
  • AMENDOLA, Steven
Agents
  • KIM, Chang, Sik
Priority Data
60/782,36115.03.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR MAKING SILICON FOR SOLAR CELLS AND OTHER APPLICATIONS
(FR) PROCÉDÉ DE FABRICATION DE SILICIUM POUR CELLULES SOLAIRES ET POUR D'AUTRES APPLICATIONS
Abstract
(EN)
A method for preparation of high purity silicon suitable for photovoltaic cells using reduction of silica, which is pre-purified in an aqueous solution, in presence of a reducing agent, preferably carbonaceous agent, where the pre-purified silica has a low amount of boron suitable for photovoltaic cells is described.
(FR)
La présente invention concerne un procédé de préparation de silicium de haute pureté qui convient pour des cellules photovoltaïques au moyen de la réduction du silice, qui est pré-purifié dans une solution aqueuse en présence d'un agent de réduction, de préférence un agent charbonneux, le silice pré-purifié possédant une faible quantité de bore, ce qui convient pour des cellules photovoltaïques.
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