Silicon carbide as raw material for silicon production

Details Silicon carbide as raw material for silicon production Silicon carbide as raw material for silicon production

C - Chemistry, Metallurgy

01

B

23/325

C01B 33/02 (2006.01) C01B 33/025 (2006.01)

Patent

CA 1321706

SILICON CARBIDE AS A RAW MATERIAL FOR SILICON PRODUCTION ABSTRACT What is described is a process for the production of silicon via the carbothermic reduction of silicon dioxide in which silicon carbide is fed as the total reductant source or as a portion of the reductant input. The process also includes recovery and recycle to the furnace of silicon monoxide and other silicon-containing materials from the by-produced gases from the furnace to maximize raw material efficiency. Finally, the process includes the recovery of energy value from the combustible by-produced gases.

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