Arc heater production of silicon involving alkali or alkaline-ea

Details Arc heater production of silicon involving alkali or alkaline-ea Arc heater production of silicon involving alkali or alkaline-ea

1978-03-31

1979-02-13

Edmundson, F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

423350, B01K 100, C01B 3302

Patent

active

041394380

ABSTRACT:
A process for producing high purity silicon characterized by the employment of an electric arc heater into which a silicon halide is injected together with a metal reductant such as an alkali metal or an alkaline-earth metal which are reacted together by projecting them tangentially into a reaction chamber to cause the formation of liquid silicon and a gaseous metal halide salt which are separated in a suitable manner such as centrifugally or by condensation.

REFERENCES:
patent: 3325314 (1967-06-01), Allegretti
patent: 3649497 (1972-03-01), Kugler et al.
patent: 4080194 (1978-03-01), Fey

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