| 发明名称 |
METHOD OF DELEADING DEBISMUTHED DROSS |
| 摘要 |
<p>An improved process for deleading debismuthized dross is provided wherein the upgraded dross is treated by cupellation to form a slag until the level of bismuth in the upgraded dross reaches about 45% by weight. After cupellation, the partially deleaded upgraded dross may be treated by conventional means such as halogenation to provide a substantially pure bismuth product.</p> |
| 申请公布号 |
JPH06108177(A) |
申请公布日期 |
1994.04.19 |
| 申请号 |
JP19930111106 |
申请日期 |
1993.04.14 |
| 申请人 |
ASARCO INC |
发明人 |
FUNSHIYO KEE OOJIEBUOBOO;SUTEIIBUN EE BURASUKOBITSUCHI |
| 分类号 |
C22B7/04;C22B13/02;C22B30/06;C22C12/00;(IPC1-7):C22B30/06 |
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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