| 发明名称 |
Recovery of chromium from scrap |
| 摘要 |
To recover chromium from scrap such as superalloy scrap, the feedstock is melted, subjected to controlled oxidation to oxidize and slag off reactive metals, then subjected to sulfidation and slow cooling to produce a coarse-grained solid wherein the bulk of the chromium is present in a phase consisting predominantly of a chromium sulfide.
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| 申请公布号 |
US4259296(A) |
申请公布日期 |
1981.03.31 |
| 申请号 |
US19790108192 |
申请日期 |
1979.12.27 |
| 申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE INTERIOR |
发明人 |
HENNION, FRANCIS J.;DEBARBADILLO, JOHN J.;AHMAD, UMAR M. U. |
| 分类号 |
C01G37/00;C01G37/02;C22B7/00;C22B34/32;(IPC1-7):C01G37/00 |
主分类号 |
C01G37/00 |
| 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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