无氰水溶性金溶液电化学合成条件研究  

Study on direct electrochemical preparation of cyanide-free water-solubility gold solution

作　　者：彭芸[1] 李德良[1] 吴赣红[1] 周兵[1] 

机构地区：[1]中南林业科技大学资源与环境学院

出　　处：《黄金》2008年第8期6-9,共4页Gold

基　　金：国家教育委员会留学回国人员资助项目(2004184)

摘　　要：利用纯金板作阳极，不锈钢板作阴极，配位体Y为电解液，在阳离子膜电解槽中电解制备无氰水溶性金溶液，探索了该工艺各种参数和反应条件。研究结果表明，电化学合成该溶液的最佳条件为：阳极电解液Y浓度1～3mol／L，阴极电解液Y浓度0．1～1．Omol／L，槽电压15～20V，温度30℃～40℃，电解时间3h；实验所得的无氰水溶性金溶液质量浓度为1．26g／L，电流效率可达到5％。Pure gold panel anode, stainless steel panel cathode and Y solution were used to synthesize the cyanide-free water-solubility gold solution in a cationic membrane electrolytic cell. The main parameters and technological conditions were studied. Optimum conditions for direct electrochemical preparation of cyanide-free gold solution were as follow： the anolyte concentration of 1～3mol/L, the catholyte concentration of 0. 1～1.0mol/L, the cell voltage of 15～20V and 30℃ ～40℃. Cyanide-free water-solubility gold solution was produced at 1.26g/L and the current yield is 5%.

关 键 词：无氰 水溶性金溶液 电化学合成 电流效率 

分 类 号：TQ153.1[化学工程—电化学工业]