摘要
从H_2SO_4—CS(NH_2)—H_2O体系中分离金银的离子交换树脂法,是又一个较好的分离方法.上海744苯乙烯型树脂,对〔Au(SCN_2H_4)~2Ⅰ^+和〔Ag(SCN_2H_4)_3〕^+有很好的吸附性能,其大孔结构特性,更适合对大型配离子团的吸附.论文给出了HCl—Br_2(水)溶液为金的洗提剂;HCl溶液为银的洗提剂.单因素和多因素正交试验研究给出了吸附富集和解吸分离的最优工艺条件.
The way of separation of gold from silver by ion-exchanging resin ia the system of H2SO4-CSINH2)2-H2O is another successful one. The shanghai 744 resin of phe-nethylene type posseses very good adsorption for [Au(SCN2H4)2]+ and [Ag(SCN2H4)s]+.Since its big porous structure character, it is more suitable for adsorbing bulker complexions. HCL-Br2(-aqu) solution is given as elution reagent for gold and HCL solution is for silver. Through experiment with single factor and orthogonal experiments varied factors,the optimum conditions for adsorption and deadsoption are given.
出处
《黄金》
CAS
北大核心
1990年第3期24-29,共6页
Gold
关键词
金
银
分离
硫脲
离子
交换
gold silver
thiourea
Ion-exchange
separation
