硫代硫酸盐浸金溶液中金量测定方法的研究  

Study on the determination of gold content in thiosulfate gold leaching solution

作　　者：高振广 刘正红 关国军 杜兆欣 孟宪伟 Gao Zhenguang;Liu Zhenghong;Guan Guojun;Du Zhaoxin;Meng Xianwei(Changchun Gold Research Institute Co.,Ltd.;National Quality Supervision Inspection Center for Gold and Sliver Products(Changchun))

机构地区：[1]长春黄金研究院有限公司 [2]国家金银及制品质量监督检验中心(长春)

出　　处：《黄金》2018年第9期78-81,共4页Gold

摘　　要：硫代硫酸盐法浸金的研究越来越多,硫代硫酸盐浸金溶液中金量的测定具有重要现实意义。实验分别采用直接酸化-活性炭吸附法、铁还原-活性炭吸附法、火试金富集法、过氧化氢氧化-酸化法、液溴氧化-酸化-活性炭吸附法及过氧化氢+液溴氧化-活性炭吸附法等多种方法测定硫代硫酸盐浸金溶液中的金量,最终确定过氧化氢+液溴氧化-活性炭吸附法测定结果重现性好,准确度高。该方法测定结果的相对标准偏差4. 34%～7. 31%,加入标准物质回收率96. 00%～102. 00%,且方法简单,适合样品的批量测定。Study on gold leaching with thiosulfate has been increasing,contributing to the determination of gold content in thiosulfate gold leaching solution.The experiment determines gold content in thiosulfate gold leaching solution by direct acidification-activated carbon adsorption,iron reduction-activated carbon adsorption,fire assay enrichment,hydrogen peroxide oxidation-acidification,liquid bromine oxidation-acidification-activated carbon adsorption and hydrogen peroxide+liquid bromine oxidation-activated carbon adsorption respectively.Finally,the hydrogen peroxide+liquid bromine oxidation-activated carbon adsorption has good reproducibility and high accuracy.The RSD of the results is 4.34%~7.31%and the recovery rate of reference materials is 96.00%~102.00%.The method is simple and convenient for batch testing of samples.

关 键 词：硫代硫酸盐 金 过氧化氢 液溴 活性炭吸附 

分 类 号：TD926.3[矿业工程—选矿]