吐温80-硫酸铵-水的固液体系萃取分离Pt(Ⅳ)、Pd(Ⅱ)、Ir(Ⅳ)碘络阴离子  

The Separation of Iodine Complex Anions of Pt,Pd,Ir by Liquid-Solid Extraction System of Tween 80-Salt-Water

作　　者：高云涛[1] 王华兰 茶军伟 吴立生[2] 

机构地区：[1]云南民族学院化学系,中国昆明650031 [2]昆明贵金属研究所,中国昆明650221

出　　处：《贵金属》2000年第3期31-33,共3页Precious Metals

摘　　要：报道了吐温 (Tween) 80 - (HN4) 2 SO4-水的固液萃取体系中Pt(Ⅳ )、Pd(Ⅱ)、Ir(Ⅳ )碘络阴离子的萃取行为 ,在HCl-NH4I介质中 ,该体系可萃取Pt(Ⅳ)、Pd(Ⅱ)、Ir(Ⅳ ) ,而贱金属不被萃取 ,可用于Pt、Pd、Ir与贱金属的分离。对合成样进行了萃取分离 ,并初步探讨其机理。A new method for the separation of iodine complex anions of Pt,Pd,Ir through liquid-solid extraction system of Tween 80-salt-water was investigated.In the medium of HCl-NH 4I,the proposed method can separate Pt,Pd,Ir and has been used for the separation of Pt,Pd,Ir in the synthetic samples.The mechanism has been studied preliminarily.

关 键 词：吐温80 铂 钯 铱 碘分铵 萃取分离 

分 类 号：O658.2[理学—分析化学] O614.82[理学—化学]