从菱锌矿氯化浸出液中萃取锌和镉——Ⅱ.胺萃取镉氯络合物  

Extracting Valuable Metals from Chloride Leaching Solutions of Smithsonite——Ⅱ.Extraction of Cadmium Chlorocomplexes by High Molecular Weight Amines

作　　者：江涛[1] 苏元复[1] 

机构地区：[1]华东化工学院化学工程研究所

出　　处：《华东化工学院学报》1991年第1期9-14,共6页

摘　　要：研究了4种大分子量胺从氯化钠或盐酸溶液中萃取镉氯络合物的行为。考察了溶液的酸度、氯离子浓度、稀释剂以及胺浓度对镉萃取率的影响。通过分析饱和有机相(饱和法)和斜率分析法得到镉在N_(1923)和TOA中的革合物形式分别为:(RNH_3)_3[CdCl_5]和(R_3NH)_2[CdCl_4]。The extraction of cadmium chlorocomplexes from hydrochloric acid or sodium chloride solution has been investigated with four commercially available high molecular weight amines. The topic studies include the extraction efficiencies of various amines and the effects of acidity, chloride concentration, diluents and amine concentration. By analysis of chemical composition of saturated organic phase and lg-lg plots of amine concentration vs. distribution ratio, the extracted metal chloride-amine species of TOA and N_(1923) are determined to be probably (R_3NH)_2 [CdCl_4] and (RNH_3)_3 [CdCl_5] respectively.

关 键 词：菱锌矿 氯化镉 溶剂 萃取 镉 锌 

分 类 号：TF813.042[冶金工程—有色金属冶金]