LEACHING GOLD BY LOW CONCENTRATION THIOSULFATE SOLUTION

来源期刊：中国有色金属学报(英文版)1992年第4期

论文作者：Gong Qian Cao Changlin Ma Yun

文章页码：21 - 25

Key words：gold extraction ; thiosulfate ; sulfide ore

Abstract: The effects of the concentrations of thiosulfate,copper and ammonia on the extraction of gold from sulfide gold concentrate have been studied. The results show that it is possible to reduce thiosulfate concentration. More than 95% of the gold could be extracted by a 0.2 mol/L thiosulfate leaching solution in two hours under suitable conditions. Therefore, the process of washing the residue was simplified, and the consumption and loss of thiosulfate carried by the washing residue were reduced.