磷酸三丁酯为载体的乳状液膜体系迁移钇(Ⅲ)的研究  

STUDY OF TRANSFER OF Y() THROUGH THE EMULSION LIQUID MEMBRANE WITH TBP AS CARRIER

作　　者：莫启武[1] 王向德[1] 万印华[1] 张秀娟[1] 

机构地区：[1]华南理工大学环境科学研究所

出　　处：《水处理技术》1999年第2期70-73,共4页Technology of Water Treatment

基　　金：高等院校博士点基金

摘　　要：本文用磷酸三丁酯（ＴＢＰ）－ＬＭＳ－２－磺化煤油乳状液膜体系研究了Ｙ（Ⅲ）的迁移行为。当膜相组成为５．０％ＴＢＰ和２．０％ＬＭＳ－２，内相为０．１０ｍｏｌ／ｄｍ３ＮａＨＣＯ３，外相含６ｍｏｌ／ｄｍ３ＮＨ４ＮＯ３，酸度为ｐＨ＝３时，Ｙ（Ⅲ）能快速并完全迁移。常见过渡元素离子如Ｆｅ２＋，Ｃｏ２＋，Ｎｉ２＋，Ｍｎ２＋，Ｚｎ２＋等均不迁移，故可以从这些离子的混合液中分离Ｙ（Ⅲ），回收率可达９８％以上。The transfer behavior of Y() through the emulsion liquid membrane system of TBPLMS2sulfonated kerosene was studied. The efficiency and speed of transfer of Y() are very high under the followingconditions: membrane phase:5.0%(V/V)TBP+2.0%(V/V)KMS2+93%(V/V); internal phase: 0.10mol/dm3NaHCO3, external phase: pH=3,6mol/dm3NH4NO3 as medium. In this case, some coexisting ions such as Fe2+, Co2+, Ni2+ and Zn2+ cannot transfer through this emulsion liquid membrane. So Y() can be separated from these ions and has a recovrey rate of more than 98%.

关 键 词：乳状液膜 TBP 分离 萃取 磷酸三丁酯 钇迁移 

分 类 号：O614.322[理学—无机化学] O658.2[理学—化学]