Oxidative removal of cyanide from aqueous streams abetted by ult

Details Oxidative removal of cyanide from aqueous streams abetted by ult Oxidative removal of cyanide from aqueous streams abetted by ult

1992-04-02

1993-08-24

Hruskoci, Peter

Liquid purification or separation

Processes

Utilizing electrical or wave energy directly applied to...

210759, 210760, 210763, 210904, C02F 132

Patent

active

052385817

ABSTRACT:
The oxidation of complexed cyanide using oxygen as the oxidizing agent when certain metal chelates are used as catalysts may be enhanced by irradiating the complexed cyanide with ultraviolet light prior to or concurrent with the oxidation. 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.

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