发明名称 |
METHOD OF SLAG FUMING |
摘要 |
<p>A method of slag fuming wherein a slag containing arsenic or arsenic and antimony together with zinc and lead is heated and reduced in a slag fuming furnace, and zinc and lead are separated by evaporation, characterized in that it comprises causing a copper melt containing copper in an amount being 5 to 100 wt % relative to that of the slag charged in the above furnace and being 100 wt % or more relative to that of the lead contained in the above slag to be co-present in the above slag melt at a temperature of 1075 to 1500˚C, and reacting the copper melt with arsenic or arsenic and antimony contained in the slag, to form a Cu-Fe-Pb-As based uniform melt. The above method of slag fuming and the like can be suitably employed for producing, by the use of a slag generated from a smelting furnace for refining zinc and/or lead, a dust containing zinc and lead and being reduced in the contents of arsenic and antimony, and a slag stably satisfying the environmental standard for soil, at a low treatment cost.</p> |
申请公布号 |
WO2005068669(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
WO2005JP00462 |
申请日期 |
2005.01.17 |
申请人 |
SUMITOMO METAL MINING CO., LTD.;TAKAHASHI, JUN-ICHI;FUJITA, KEIJI;TAN, TOSHIRO |
发明人 |
TAKAHASHI, JUN-ICHI;FUJITA, KEIJI;TAN, TOSHIRO |
分类号 |
C22B7/00;C22B7/04;C22B13/02;C22B13/06;C22B19/04;C22B19/28;C22B19/30;C22B19/32;(IPC1-7):C22B7/00 |
主分类号 |
C22B7/00 |
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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