Chemistry of inorganic compounds – Silicon or compound thereof – Elemental silicon
Patent
1977-05-25
1979-11-27
Cooper, Jack
Chemistry of inorganic compounds
Silicon or compound thereof
Elemental silicon
264299, C01B 3302
Patent
active
041761669
ABSTRACT:
The method and apparatus for producing liquid silicon of high purity and for casting silicon. Hydrogen and a hydrogenated silane in gaseous state are mixed, preferably with a source of a small amount of oxygen, in a heated chamber producing the liquid silicon, with the exhaust gases bubbling out of the melt under a baffle. The chamber for the melt of liquid silicon preferably is lined with silicon dioxide. The liquid silicon may be used in making high purity vitreous silica and may be used in making castings of silicon. In making castings, the liquid silicon is accumulated in a second chamber and is periodically drawn from the second chamber into a third chamber which contains the mold for the casting.
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Cooper Jack
Pennish John S.
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