Production of silicon

Details Production of silicon Production of silicon

1988-07-20

1991-10-22

Chaudhuri, Olik

Chemistry of inorganic compounds

Silicon or compound thereof

Elemental silicon

118716, 422139, 427213, C01B 33027

Patent

active

050594109

ABSTRACT:
An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.

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patent: 4154870 (1979-05-01), Wakefield
patent: 4381898 (1983-05-01), Rotolico et al.
patent: 4391860 (1983-07-01), Rotolico et al.
patent: 4424199 (1984-01-01), Iya
patent: 4684513 (1987-08-01), Iya
patent: 4691866 (1987-09-01), Belk

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