Process for recovery of silicon from a reaction mixture

Details Process for recovery of silicon from a reaction mixture Process for recovery of silicon from a reaction mixture

C - Chemistry, Metallurgy

01

B

23/327

C01B 33/02 (2006.01) C01B 33/033 (2006.01)

Patent

CA 1250132

ABSTRACT OF THE DISCLOSURE: A process for the recovery by leaching of silicon from a reaction mixture comprising silicon and an alkali metal fluoride, is improved by addition of an alkaline earth metal chloride to the leaching bath. This reduces silicon oxidation and thereby increases silicon yield. The rate of leaching is also accelerated.

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