Cyanide recycling using strong-base ion-exchange resins

JOM | October 1, 1998| | Copyright

Among the techniques available to recover cyanide and metal cyanocomplexes from diluted streams, ion-exchange resins seem attractive because of the possibility of treating either pulps or clear solutions with this process. This article discusses the results of adsorption and elution of metal cyanocomplexes obtained with industrial effluents and selected data from the literature. The behavior of iron and copper cyanocomplexes during elution is emphasized.

INTRODUCTION

Cyanide is the universal lixiviant for gold. Despite its high affinity with respect to the precious metal, cyanide solutions ...

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