发明名称 |
Recovery of precious metals by oxidation in the aqueous phase of associated carbonaceous support material |
摘要 |
This invention relates to the recovery of precious metals. More particularly, the invention relates to a process for the recovery of a catalytic metal from a carbonaceous residue or support comprising subjecting an aqueous slurry of material containing catalytic metal to be recovered to a temperature of not less than 200 DEG C and a pressure not less than 75 atmospheres in an atmosphere comprising a quantity of oxygen at least sufficient to oxidize substantially all the carbon present, the oxidation being carried out in the presence of a liquid aqueous phase. The process also relates to the recovery of silver from photographic film.
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申请公布号 |
US4123500(A) |
申请公布日期 |
1978.10.31 |
申请号 |
US19770759551 |
申请日期 |
1977.01.14 |
申请人 |
JOHNSON, MATTHEY & CO., LIMITED |
发明人 |
ACRES, GARY J. K.;BIRD, ALFRED J. |
分类号 |
C01G5/00;C01G55/00;(IPC1-7):C01G5/00;C22B11/04;B01J23/96;B01J21/20 |
主分类号 |
C01G5/00 |
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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