发明名称 |
CONTINUOUS DIRECT PROCESS OF LEAD SMELTING |
摘要 |
<p>There is disclosed a continuous direct process of lead smelting comprising a step of blowing a compounded feedstock by means of an oxygen-enriched air or oxygen into a smelting zone containing a molten lead bath with a blast pressure by which the compounded feedstock can penetrate into the molten lead bath, at a temperature at which the oxidation reaction of the lead sulfide concentrate can be sustained, said feedstock containing particulate or powdered lead sulfide concentrate and a flux and further containing a fuel when oxygen-enriched air is used, whereby the lead sulfide is oxidized to form crude lead and slag; and a step of transferring the molten crude lead and the slag formed in said first step to a reduction zone, where the slag is contacted with a reducing agent so as to reduce the lead substances in the slag and return the reduced lead to the crude lead.</p> |
申请公布号 |
CA1219133(A) |
申请公布日期 |
1987.03.17 |
申请号 |
CA19840451980 |
申请日期 |
1984.04.13 |
申请人 |
MITSUBISHI KINZOKU KABUSHIKI KAISHA |
发明人 |
KAWAKITA, SHIZUO;SHIBAZAKI, TAKEYOSHI;MOCHIDA, HIROMI |
分类号 |
C22B7/04;C22B13/02;(IPC1-7):C22B13/00 |
主分类号 |
C22B7/04 |
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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