水相添加表面活性剂CTAB对TBP萃取低浓度金的影响  

Effects of addition of CTAB in aqueous phase on extraction with TBP from low gold concentration cyanide solutions

作　　者：杨项军[1] 陈景[1] 吴瑾光[2] 张欣[1] 黄昆[1] 赵家春[1] 李奇伟[1] 陈奕然[1] 

机构地区：[1]昆明贵金属研究所,昆明650221 [2]北京大学化学与分子工程学院,北京100871

出　　处：《中国有色金属学报》2002年第6期1309-1313,共5页The Chinese Journal of Nonferrous Metals

基　　金：~~

摘　　要：Gold extraction from alkaline aurocynide solution (about 10 mg/L) with 100% TBP in aqueous phase with CTAB and without CTAB,was studied.The effect of NaCl concentration,initial gold concentration in organic phase,equilibrium isotherm and the changes of extraction rate with extraction times were investigated.The results show that 100% TBP has better extraction characteristic in aqueous phase with CTAB than in aqueous phase without CTAB.The results of extraction from 10 L gold alkaline aurocynide solution of 10 mg/L using 150 mL TBP indicate that gold extraction rate is more than 90%.Gold extraction from alkaline aurocynide solution (about 10 mg/L) with 100% TBP in aqueous phase with CTAB and without CTAB,was studied.The effect of NaCl concentration,initial gold concentration in organic phase,equilibrium isotherm and the changes of extraction rate with extraction times were investigated.The results show that 100% TBP has better extraction characteristic in aqueous phase with CTAB than in aqueous phase without CTAB.The results of extraction from 10 L gold alkaline aurocynide solution of 10 mg/L using 150 mL TBP indicate that gold extraction rate is more than 90%.

关 键 词：金 碱性氰化液 十六烷基三甲基溴化铵 磷酸三丁脂 

分 类 号：TF804.2[冶金工程—有色金属冶金]