发明名称 |
Process and apparatus for purifying silicon |
摘要 |
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.
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申请公布号 |
US4747906(A) |
申请公布日期 |
1988.05.31 |
申请号 |
US19870077921 |
申请日期 |
1987.07.27 |
申请人 |
SHOWA ALUMINUM CORPORATION |
发明人 |
SHINGU, HIDEO;OTSUKA, RYOTATSU;TANIMOTO, SHIGEMI;TOYODA, KAZUO |
分类号 |
C01B33/02;C01B33/037;C30B29/06;(IPC1-7):C30B19/00 |
主分类号 |
C01B33/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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