Synergism in the Solvent Extraction of Europium(III) with Thenoyltrifluoroacetone and CMPO in Methylimidazolium Ionic Liquids

作者: Maria Atanassova , Vanya Kurteva

DOI: 10.1007/S10953-019-00844-8

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摘要: The solvent extraction of Eu(III) from an aqueous chloride phase into hydrophobic ionic liquids (ILs), 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imides ([C1Cnim+][Tf2N−], n = 4, 6, 8 and 10), by β-diketone 2-thenoyltrifluoroacetone (HTTA) alone in combination with N,N-diisobutyl-2-(octylphenylphosphoryl)acetamide (CMPO) was investigated. interaction between the two extractants (acidic/neutral) deuterochloroform has been studied 1H, 13C, 19F 31P NMR spectra NOESY experiments. 1H Q-NMR analytical techniques were also applied for determination [C1C4im+] [Tf2N−] entities transferred phase. efficiently extracted HTTA/[C1Cnim+][Tf2N−] HTTA/CMPO/[C1Cnim+][Tf2N−] systems but a relatively small synergism established. A cation mechanism proposed via log–log slope analysis method. effect IL alkyl chain length on process as well.

参考文章(69)
R J Krupadam, Y Anjaneyulu, K S R Murthy, STUDIES ON THE SOLVENT EXTRACTION OF TRIVALENT LANTHANIDES WITH HEXAFLUOROACETYLACETONE (HFAA) AND TRI-N-OCTYLPHOSPHINEOXIDE (TOPO) Proceedings of the Indian Academy of Sciences. Chemical sciences. ,vol. 110, pp. 83- 88 ,(1998) , 10.1007/BF02871144
Camiel H.C. Janssen, Norma A. Macías-Ruvalcaba, Martha Aguilar-Martínez, Mark N. Kobrak, Metal extraction to ionic liquids: the relationship between structure, mechanism and application International Reviews in Physical Chemistry. ,vol. 34, pp. 591- 622 ,(2015) , 10.1080/0144235X.2015.1088217
T. V. Healy, SYNERGISM WITH THENOYL TRIFLUORACETONE IN THE SOLVENT EXTRACTION OF METALLIC SPECIES Nuclear Science and Engineering. ,vol. 16, pp. 413- 420 ,(1963) , 10.13182/NSE63-A26553
Tatsuya Sekine, Yasuaki Koike, Yuko Hasegawa, Studies of Actinium(III) in Various Solutions. II. Distribution Behavior of Lanthanum(III) and Actinium(III) in Some Chelate Extraction Systems Bulletin of the Chemical Society of Japan. ,vol. 42, pp. 432- 436 ,(1969) , 10.1246/BCSJ.42.432
A. Sambasiva Reddy, L. Krishna Reddy, Solvent Extraction Separation of Some Actinides and Lanthanides with 2-Thenoyltifluoroacetone Separation Science and Technology. ,vol. 15, pp. 1263- 1269 ,(1980) , 10.1080/01496398008066971
Junji Noro, Tatsuya Sekine, Separation factor of lanthanoids by solvent extraction of their ternary complexes Journal of Alloys and Compounds. ,vol. 192, pp. 132- 134 ,(1993) , 10.1016/0925-8388(93)90209-6