发明名称 |
Method for treating aqueous streams containing undesired amounts of cyanide. |
摘要 |
<p>A cyanide-containing aqueous stream is treated to reduce the cyanide concentration by oxidation of cyanide using oxygen as the oxidizing agent under mild reaction conditions in the presence of a metal chelate catalyst. Especially effective chelates are metal phthalocyanines, particularly where the metal is vanadium or a member of the iron group metals. The oxidation can be effected homogeneously using water soluble metal chelates, or can be performed heterogeneously, especially in a continuous fashion using a packed bed reactor, by using suitable water-insoluble metal chelates, especially when supported on appropriate carriers.</p> |
申请公布号 |
EP0572698(A1) |
申请公布日期 |
1993.12.08 |
申请号 |
EP19920109416 |
申请日期 |
1992.06.04 |
申请人 |
UOP |
发明人 |
FRAME, ROBERT R.;KALNES, TOM N.;MOSER, MARK D. |
分类号 |
C02F1/58;B01J31/12;B01J31/16;B01J31/18;C02F;C02F1/32;C02F1/72;C02F1/74;C02F1/78;C02F9/00;(IPC1-7):C02F1/72 |
主分类号 |
C02F1/58 |
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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