发明名称 |
Process for recovering rhodium from residues of the destillation of products of the oxosynthesis. |
摘要 |
The recovery of rhodium, present as a homogeneous dissolved complex compound especially in residues of products of the oxo process, is carried out in a two-stage process. In the first stage, the residues are treated with a gas-containing oxygen in the presence of a C2- to C4- monocarboxylic acid and an alkali metal salt of a C2- to C4-monocarboxylic acid, and are then extracted with water. In the second reaction stage, they are treated again with a gas-containing oxygen, an aldehyde, a C2- to C4-monocarboxylic acid, and an alkali metal salt of a C2 to C4 monocarboxylic acid, and are extracted once more with water. |
申请公布号 |
EP0475036(B1) |
申请公布日期 |
1993.12.15 |
申请号 |
EP19910112477 |
申请日期 |
1991.07.25 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
LAPPE, PETER, DR. DIPL.-CHEM.;SPRINGER, HELMUT, DIPL.-ING. |
分类号 |
B01J38/00;B01J31/40;C01G55/00;C07C45/50;C07C47/02 |
主分类号 |
B01J38/00 |
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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