A Novel Technique for Silver Extraction from Silver Sulphide Ore

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Turkish Journal of Chemistry
Volume:25 Issue:2
A Novel Technique for Silver Extraction from Silver Sulphide Ore

A Novel Technique for Silver Extraction from Silver Sulphide Ore

Authors : S AYATA, H YILDIRAN

Pages : 187-191

View : 17 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A novel technique for silver extraction from Ag2S is described. The method utilizes thiosulphate as complexing reagent and the redox reaction between SO2 added as Na2SO3 powder and H2S gas evolved. The parameters of the reaction such as pH, the reaction temperature, the complex equilibrium of Ag+ ion with thiosulphate and the solubility of Ag2S were investigated. Silver ions, obtained by this means are collected in high purity insert ignore into journalissuearticles values(99%); by applying appropriate electrolysis conditions. The interference from other metallic impurities, namely copper, gold, iron and zinc, is eliminated by choosing an appropriate electrolysis potential.
Keywords : Silver recovery, silver extraction, thiosulphate leaching

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