Abstract
Extraction of europium(III) from nitric acid medium was studied in a solution of N,N,N′,N′-tetra-n-octyldiglycolamide (TODGA) dissolved in 1-methyl-3-octylimidazolium bis(trifluormethanesulfonyl)imide ([C8mim][NTf2]) ionic liquid at higher Eu(III) loading conditions ranging from 1 to 100 g/L Eu(III) in aqueous phase. The extraction of Eu(III) was studied as a function of various parameters such as the concentration of nitric acid, Eu(III) ion in aqueous phase, TODGA, nature of the ionic liquid, nature of extractant, and phase modifiers etc. The results revealed that Eu(III) could be loaded to the extent of 1: 3 stoichiometry in ionic liquid phase without leading to undesirable third phase formation.
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Rama, R., Rout, A., Venkatesan, K.A. et al. Loading behavior of Eu(III) at high aqueous concentrations in diglycolamide/ionic liquid systems. J Radioanal Nucl Chem 308, 835–842 (2016). https://doi.org/10.1007/s10967-015-4568-5
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DOI: https://doi.org/10.1007/s10967-015-4568-5