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Mekki S, Wai CM, Billard I, et al. Extraction of lanthanides from aqueous solution by using room-temperature ionic liquid and supercritical carbon dioxide in conjunction. Chemistry. 2006;12(6):1760-6doi: 10.1002/chem.200500559.
Mekki, S., Wai, C. M., Billard, I., Moutiers, G., Burt, J., Yoon, B., Wang, J. S., Gaillard, C., Ouadi, A., & Hesemann, P. (2006). Extraction of lanthanides from aqueous solution by using room-temperature ionic liquid and supercritical carbon dioxide in conjunction. Chemistry (Weinheim an der Bergstrasse, Germany), 12(6), 1760-6. https://doi.org/10.1002/chem.200500559
Mekki, Soufiane, et al. "Extraction of lanthanides from aqueous solution by using room-temperature ionic liquid and supercritical carbon dioxide in conjunction." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 12,6 (2006): 1760-6. doi: https://doi.org/10.1002/chem.200500559
Mekki S, Wai CM, Billard I, Moutiers G, Burt J, Yoon B, Wang JS, Gaillard C, Ouadi A, Hesemann P. Extraction of lanthanides from aqueous solution by using room-temperature ionic liquid and supercritical carbon dioxide in conjunction. Chemistry. 2006 Feb 08;12(6):1760-6. doi: 10.1002/chem.200500559. PMID: 16311989.
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Chemistry. 2006 Feb 08;12(6):1760-6. doi: 10.1002/chem.200500559.

Extraction of lanthanides from aqueous solution by using room-temperature ionic liquid and supercritical carbon dioxide in conjunction.

Chemistry (Weinheim an der Bergstrasse, Germany)

Soufiane Mekki, Chien M Wai, Isabelle Billard, Gilles Moutiers, James Burt, Byunghoon Yoon, Joanna S Wang, Clotilde Gaillard, Ali Ouadi, Peter Hesemann

Affiliations

  1. IReS, CNRS/IN2P3-ULP Chimie Nucléaire, B.P. 28, 67037 Strasbourg Cedex 2, France. [email protected]

PMID: 16311989 DOI: 10.1002/chem.200500559

Abstract

For the first time, the study of a three-step extraction system of water/ionic liquid/supercritical CO2 has been performed. Extraction of trivalent lanthanum and europium from an aqueous nitric acid solution to a supercritical CO2 phase via an imidazolium-based ionic liquid phase is demonstrated, and extraction efficiencies higher than 87 % were achieved. The quantitative extraction is obtained by using different fluorinated beta-diketones with and without the addition of tri(n-butyl)phosphate. The complexation phenomenon occurring in the room-temperature ionic-liquid (RTIL) phase was evidenced by using luminescence spectroscopy.

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