发明名称 |
Phosphorous removal in silicon purification |
摘要 |
A method of removing phosphorous impurity in a process for purifying silicon wherein silicon is crystallized from a solvent metal is disclosed. The method comprises the steps of providing a molten body containing silicon, the remainder aluminum and impurities, and treating the body with a source of chlorine to remove phosphorous therefrom.
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申请公布号 |
US4312849(A) |
申请公布日期 |
1982.01.26 |
申请号 |
US19800185610 |
申请日期 |
1980.09.09 |
申请人 |
ALUMINUM COMPANY OF AMERICA |
发明人 |
KRAMER, RAYMOND A. |
分类号 |
C01B33/037;(IPC1-7):B01D9/00;C01B33/02 |
主分类号 |
C01B33/037 |
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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