Journal
SOLVENT EXTRACTION AND ION EXCHANGE
Volume 36, Issue 6, Pages 558-573Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07366299.2018.1545289
Keywords
Ionic liquid; amide functionalized ionic liquid; extraction; actinides; separation factor
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Funding
- Board of Research in Nuclear Sciences [21/09/2015-BRNS/35040]
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A new ammonium-based task-specific ionic liquid, N,N-dioctyl-(4-trihexylammonium)butyramide bis(trifluoromethanesulfonyl)imide ([AmDOA][NTf2]), was synthesized and characterized by elemental analysis, and Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FTIR) spectroscopies. The extraction behavior of Pu(IV), U(VI), and Am(III) from nitric acid medium was studied in a solution of [AmDOA][NTf2] in an ionic liquid diluent, methyltributylammonium bis(trifluoromethanesulfonyl)imide ([N-1444][NTf2]). The distribution ratio of actinides obtained in [AmDOA][NTf2]/[N-1444][NTf2] was compared with other task-specific ionic liquids. The extraction stoichiometry of Pu(IV) in ionic liquid phase was determined, and the conditions needed for the efficient recovery of Pu(IV) from the loaded organic phase were evaluated. The results of these studies are reported in this article.
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