Method of Gold Recovery from Thiosulfate Solution
Gold thiosulfate complex is difference with gold cyanide complex, which is easily adsorbed on activated carbon while gold thiosulfate complex cannot be satisfactorily recovered by factivated carbon. However, Gold thiosulfate could be recovered by activated carbon if cyanide is added into the thiosulfate solution. To avoid the cyanide solution, this paper will review several possible processes to recover the gold from thiosuldate solution: such as the cementation with metals, ion exchange resin and solvent extraction. The gold cementation with the powders of zinc, copper, iron and aluminium will be discussed. The advantage and disadvantage of each are compared. The consumption of thiosulfate and copper and feasibility of solution recycling will be discussed. The gold recovery by some ion exchange resins will be suggested. The processing conditions, its applications and the resin elution methods will be presented. The gold recovery by using solvent extraction will be reviewed. The processing conditions of solvent extraction process are discussed and compared.
Gold Recovery Thiosulfate Cementation Zinc Copper Iron Aluminium Ion Exchange Solvent extraction Electrowinning
W.T. Yen K. J. Liu
Department of Mining Engineering Queens University, Kingston, Canada DOWA Environmental Management Co. Ltd., Suzhou, China
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
2801-2806
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）