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

1977-01-06

1978-07-25

Edmundson, F.C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

423348, 423350, 250531, B01K 100, C01B 3302

Patent

active

041027655

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: 524173 (1894-08-01), Jaques
patent: 732410 (1903-06-01), Homan
patent: 2955966 (1960-10-01), Sterling
patent: 3325314 (1967-06-01), Allegretti
patent: 3522015 (1970-07-01), Maniero et al.
patent: 3649497 (1972-03-01), Kugler et al.
patent: 3963838 (1976-06-01), Setty et al.

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