Method of manufacturing silicon from powdered material...

Details Method of manufacturing silicon from powdered material... Method of manufacturing silicon from powdered material...

C - Chemistry, Metallurgy

01

B

23/325, 204/96.3

C01B 33/02 (2006.01) C01B 33/023 (2006.01) C01B 33/025 (2006.01)

Patent

CA 1193071

ABSTRACT Silicon is manufactured from powdered material containing silica by injecting this, optionally together with a reducing agent, into a gas plasma with the help of a carrier gas. Thereafter the silica material thus heated, together with the reducing agent if any and the energy-rich plasma gas, is introduced in a reaction chamber surrounded by solid reducing agent in lump form, so that the silica is caused to melt and is reduced to liquid silicon.

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