Solvent Extraction Separation of La 3+ and Ba 2+ Using Imidazolium Ionic Liquids and TODGA Extractant

Jason R. Bell; Huimin Luo; Sheng Dai

doi:10.1080/01496395.2012.697530

Solvent Extraction Separation of La ³⁺ and Ba ²⁺ Using Imidazolium Ionic Liquids and TODGA Extractant

Jason R. Bell, Huimin Luo, Sheng Dai

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Solvent extraction of La ³⁺ and Ba ²⁺ 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 _nmim][NTf ₂]/[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.

Original language	English
Pages (from-to)	2002-2006
Number of pages	5
Journal	Separation Science and Technology (Philadelphia)
Volume	47
Issue number	14-15
DOIs	https://doi.org/10.1080/01496395.2012.697530
State	Published - Jan 2012

Funding

JRB and HML were supported by the U.S. Department of Energy, the Office of Nuclear Physics. SD was supported by the Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences under Contract DE-AC05-0096OR22725 with Oak Ridge National Laboratory, managed by UT-Battelle, LLC. JRB acknowledges the Oak Ridge Associated Universities (ORAU) for postdoctoral fellowship.

Funders	Funder number
Office of Basic Energy Sciences
Office of Nuclear Physics
UT-Battelle
U.S. Department of Energy
Oak Ridge Associated Universities
Oak Ridge National Laboratory
Chemical Sciences, Geosciences, and Biosciences Division	DE-AC05-0096OR22725

Keywords

TODGA
ionic liquids
la /ba
solvent extraction

Access to Document

10.1080/01496395.2012.697530

Cite this

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abstract = "Solvent extraction of La 3+ and Ba 2+ 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 nmim][NTf 2]/[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.",

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AB - Solvent extraction of La 3+ and Ba 2+ 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 nmim][NTf 2]/[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.

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