发明名称 |
METHOD FOR REMOVING BORON FROM METALLURGICAL GRADE SILICON AND APPARATUS |
摘要 |
Method and apparatus for refining metallurgical grade silicon to carry out deboronization rapidly in production of silicon for solar cells, by blowing a mixed gas of water vapor and inert gas on a surface of molten silicon, and wherein a reducing gas is further applied to the molten metal surface, and including the further step of controlling mix ratios of water vapor and reducing gas, the angle of blowing of the gas, and the deboronization parameters.
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申请公布号 |
CA2227693(A1) |
申请公布日期 |
1998.07.22 |
申请号 |
CA19982227693 |
申请日期 |
1998.01.22 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
NAKAMURA, NAOMICHI;BABA, HIROYUKI;YUGE, NORIYOSHI;ABE, MASAMICHI;SAKAGUCHI, YASUHIKO;ARATANI, FUKUO;HANAZAWA, KAZUHIRO;SAITO, KENJI;KATO, YOSHIEI |
分类号 |
C01B33/037;(IPC1-7):C01B33/037 |
主分类号 |
C01B33/037 |
代理机构 |
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代理人 |
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地址 |
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