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METHOD OF ELUTING GOLD AND SILVER AND METHOD OF RECOVERING GOLD AND SILVER USING THE SAME

机译:溶出金和银的方法以及使用该方法回收金和银的方法

摘要

Gold included in metal sulfide can be efficiently adsorbedon activated carbon and gold and silver adsorbed on theactivated carbon can be efficiently eluted. The method ofeluting gold and silver comprises:leaching gold and silver using acidic leachate whichincludes chloride ions and/or bromide ions as anions andcopper and iron as cations from sulfide ore bearing goldand silver to the acidic leachate by heating;adsorbing at least the gold and silver in the acidicleachate on activated carbon; andeluting gold and silver on activated carbon, on whichat least the gold and silver are adsorbed, by using anaqueous thiosulfate solution that is maintained at lessthan pH 7.
机译:金属硫化物中包含的金可以被有效地吸附吸附在活性炭和金银上活性炭可以被有效地洗脱。方法洗脱金和银包括:使用酸性浸出液浸出金和银包括氯离子和/或溴离子作为阴离子,以及含金硫化矿中铜和铁作为阳离子通过加热将银制成酸性渗滤液;至少吸收酸性的金和银活性炭上的渗滤液;和在活性炭上洗脱金和银,至少金和银被吸附,通过使用保持在较低水平的硫代硫酸盐水溶液比pH 7。

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