发明名称 |
Method of refining mattes containing nickel |
摘要 |
Nickel-containing mattes are desulphurized down to low sulphur levels (less than 1%) in a multi-stage process effected in a single converter vessel. In the first stage, an oxidizing gas is blown into the molten matte to reduce the sulphur level to about 4 to 7% and in one or more subsequent stages, oxygen and a diluent are blown into the matte, with a peripheral flow of protective fluid to protect the tuyeres against wear. The diluent, which may be argon or steam for example, dilutes the sulphur dioxide in the matte.
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申请公布号 |
US4045215(A) |
申请公布日期 |
1977.08.30 |
申请号 |
US19760682751 |
申请日期 |
1976.05.03 |
申请人 |
CREUSOT-LOIRE |
发明人 |
LEROY, PIERRE;MORLET, JEAN GEORGES;SALEIL, JEAN |
分类号 |
C22B23/02;(IPC1-7):C22B23/00 |
主分类号 |
C22B23/02 |
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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