发明名称 |
Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
摘要 |
A process is described for recycling catalysts in the reaction for the oxidation of alcohols and/or ketones to carboxylic acids and more particularly the oxidation of cyclic alcohols and/or cyclic ketones to dicarboxylic acids, such as the oxidation of cyclohexanol and/or cyclohexanone to adipic acid. This process involves treating the solution comprising the oxidation catalyst, before it is recycled, with an ion-exchange resin which makes it possible to selectively separate the iron from the other metal elements, in particular from copper and from vanadium.
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申请公布号 |
US7045656(B2) |
申请公布日期 |
2006.05.16 |
申请号 |
US20040846591 |
申请日期 |
2004.05.17 |
申请人 |
RHODIA FIBER & RESIN INTERMEDIATES |
发明人 |
GOTTELAND PATRICE;LOGETTE SEBASTIEN |
分类号 |
C02F1/42;C07C51/245;B01D15/04;B01J23/94;B01J38/00;B01J38/74;B01J39/04;B01J39/12;B01J49/00;C02F1/64;C02F101/20;C02F103/36;C07B41/08;C07B61/00;C07C51/31;C07C55/14 |
主分类号 |
C02F1/42 |
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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