Process and apparatus for purifying silicon

Details Process and apparatus for purifying silicon Process and apparatus for purifying silicon

1987-07-27

1988-05-31

Sever, Frank

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG64, 210774, C30B 1900

Patent

active

047479060

ABSTRACT:
Crude silicon is purified by melting the crude silicon, maintaining the molten silicon above the solidification temperature thereof in an inert gas atmosphere, and rotating a hollow rotary cooling member as immersed in the molten silicon while introducing a cooling fluid into the cooling member to cause high-purity silicon to crystallize on the outer surface of the cooling member.

REFERENCES:
patent: 4312700 (1982-01-01), Helmreich et al.
patent: 4417911 (1983-11-01), Cundy et al.

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