JACK R MCDONALD
Vehicle Board in Pittsburgh, PA
License number
Pennsylvania MV036714L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Pittsburgh, PA 15237
Professional information
Arc Heater Production Of Silicon Involving Alkali Or Alkaline-Earth Metals
US Patent:
4139438, Feb 13, 1979
Filed:
Mar 31, 1978
Appl. No.:
5/891992
Inventors:
Maurice G. Fey - Plum Borough PA
Francis J. Harvey - Murrysville PA
Jack McDonald - Penn Hills PA
Francis J. Harvey - Murrysville PA
Jack McDonald - Penn Hills PA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
B01K 100, C01B 3302
US Classification:
204164
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.
Arc Heater Production Of Silicon Involving Alkali Or Alkaline-Earth Metals
US Patent:
4102765, Jul 25, 1978
Filed:
Jan 6, 1977
Appl. No.:
5/757546
Inventors:
Maurice G. Fey - Plum Borough PA
Francis J. Harvey - Murrysville PA
Jack McDonald - Penn Hills PA
Francis J. Harvey - Murrysville PA
Jack McDonald - Penn Hills PA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
B01K 100, C01B 3302
US Classification:
204164
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.