Elsevier

Hydrometallurgy

Volume 28, Issue 3, April 1992, Pages 373-379
Hydrometallurgy

Kinetics of zinc and cobalt sulphide precipitation and its application in hydrometallurgical separation

https://doi.org/10.1016/0304-386X(92)90042-XGet rights and content

Abstract

Zinc and cobalt sulphides are precipitated from an ammoniacal solution containing ammonium sulphate by controlled addition of sodium sulphide solution. The kinetics of the reaction have been studied. Zinc shows first order kinetics whereas cobalt shows three kinetic regions with an induction period in the first region. This difference is exploited to obtain differential precipitation of sulphides.

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