Solvent Extraction Separation of La3+ and Ba2+ Using Imidazolium Ionic Liquids and TODGA Extractant

被引：7

作者：

Bell, Jason R. ^{[1
]}

Luo, Huimin ^{[1
]}

Dai, Sheng ^{[2
]}

机构：

[1] Oak Ridge Natl Lab, Energy & Transportat Sci Div, Oak Ridge, TN 37831 USA

[2] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2012年 / 47卷 / 14-15期

关键词：

ionic liquids; la(3+)/ba(2+); solvent extraction; TODGA; METAL-IONS; CROWN-ETHERS; LANTHANIDES; ACTINIDES; GREENNESS; MECHANISM; SR2+; CS+;

D O I：

10.1080/01496395.2012.697530

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Solvent extraction of La3+ and Ba2+ by N, N, N',N'-tetra(n-octyl)diglycolamide (TODGA) from aqueous solutions in twelve imidazolium- based ionic liquids (ILs), 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide/bis(perfluoroethylsulfonyl)imide ([C(n)mim][NTf2]/[BETI], n = 2,3,4,6,8,10) were investigated. The corresponding extraction efficiencies were found to be dependent on concentration of TODGA used, the acidity of aqueous phase, alkyl chain length on IL cation, and IL anion as well.

引用

页码：2002 / 2006

页数：5

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