Turkish Journal of Chemistry
Abstract
A novel technique for silver extraction from Ag_2S is described. The method utilizes thiosulphate as complexing reagent and the redox reaction between SO_2 added as Na_2SO_3 powder and H_2S 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 Ag_2S were investigated. Silver ions, obtained by this means are collected in high purity (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.
DOI
-
Keywords
Silver recovery, silver extraction, thiosulphate leaching
First Page
187
Last Page
191
Recommended Citation
AYATA, S, & YILDIRAN, H (2001). A Novel Technique for Silver Extraction from Silver Sulphide Ore. Turkish Journal of Chemistry 25 (2): 187-191. https://doi.org/-
