发明名称 |
Recovery of metal values from spent catalysts |
摘要 |
Spent catalysts from hydrocarbon refining processes, comprising transition metal compounds on aluminum oxide-containing supports, are subjected to an oxidative roasting and are treated with sulfuric acid in a counter-current digester to dissolve metals. Following operations to separate compounds of the various transition metals, a solution containing approximately stoichiometric equivalents of aluminum and sulfate is obtained.
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申请公布号 |
US4721606(A) |
申请公布日期 |
1988.01.26 |
申请号 |
US19840640241 |
申请日期 |
1984.08.13 |
申请人 |
UNION OIL COMPANY OF CALIFORNIA |
发明人 |
TILLEY, GEORGE L. |
分类号 |
C01F7/74;C01G31/00;C01G39/00;C01G41/00;C01G51/00;C01G53/00;C22B3/28;C22B3/38;C22B7/00;C22B23/02;C22B34/22;C22B34/34;(IPC1-7):C01G39/00 |
主分类号 |
C01F7/74 |
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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