W/O型微乳状液迁移和富集痕量金属离子Cd^(2+)、Cr^(3+)的研究  

Studies on the Transport and Enrichment of Trace Metal Ions Cd 2+ and Cr 3+ by W/O Microemulsion

作　　者：韩立新[1] 李克安[1] 

机构地区：[1]北京大学化学与分子工程学院

出　　处：《高等学校化学学报》1998年第8期1236-1238,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：利用各种分离技术分离和富集金属离子，无论是在环境保护还是在湿法冶金方面都具有重要的意义．油包水型微乳状液因具有独特的物理化学性质，已越来越广泛地应用于金属离子的萃取分离上［１～６］．Ｏｖｅｊｅｒｏ－Ｅｓｃｕｄｅｒｏ等［７］对利用微乳分离金属离子Ｎｉ的...The water in oil(W/O) microemulsions, which have been prepared by using the surfactant diethylhexyl sodium sulphasuccinate(AOT) and the oil solvent n heptane, were used to transport and enrich trace metal ions Cd 2+ and Cr 3+ . The experimental results show that the two metal ions have high transport ratios(>90%) under the optimum conditions, Cd 2+ has high enrich times(6—7 times) and recovery ratio(100%), but Cr 3+ has very low enrich times(1—2 times) and recovery ratio(0%) under the given conditions of de emulsion.

关 键 词：W/O型 迁移率 富集 微乳液 镉离子 铬离子 回收 

分 类 号：O614.611[理学—无机化学] O614.242[理学—化学]