摘要
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。当膜相体积分数为５．０％ＴＢＰ和２．０％ＬＭＳ－２，内相为０．０１ｍｏｌ／ＬＮａＨＣＯ３，外相含６ｍｏｌ／ＬＮＨ４ＮＯ３，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
transportation behavior of Y() through the emulsion liquid membrane system of
TBPLMS2sulfonated kerosene has been studied.The efficiency and speed of transportation of
Y() are very high when the conditions show as follows:membrane
phase:5.0%(v/v)TBP+2.0%(v/v)LMS2+93%(v/v)sulfonated kerosene;internal phase:0.10mol/L
NaHCO3,external phase:pH=3,6mol/L NH4NO3 as medium.In this case,some coexisting ions
such as Fe2+,Co2+,Ni2+,Mn2+and Zn2+cannot transport through this emulsion liquid
membrane.So Y() can be separated from these ions and has a recovrey of >98%.
出处
《现代化工》
CAS
CSCD
1999年第5期24-26,共3页
Modern Chemical Industry
