发明名称 |
Process for purification of solid silicon |
摘要 |
A process is disclosed for producing silicon having a purity 99.999% or better which comprises contacting solid silicon at a temperature slightly below the melting point of silicon with a molten purifying agent which does not appreciably react with silicon to cause the impurities in the silicon to enter the molten material. After cooling, the purified silicon is separated from the purifying agent and the impurities therein by leaching.
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申请公布号 |
US4612179(A) |
申请公布日期 |
1986.09.16 |
申请号 |
US19850711584 |
申请日期 |
1985.03.13 |
申请人 |
SRI INTERNATIONAL |
发明人 |
SANJURJO, ANGEL;PRESSACCO, SYLVIA |
分类号 |
C01B33/02;B01J19/00;C01B33/037;C22B9/00;C22B9/14;(IPC1-7):C01B33/02 |
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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