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Ionic Liquids as a Novel Solvent for Lanthanide Extraction

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Abstract

Octyl(phenyl)-N,N-diisobutylcarbamoylmethyl phosphine oxide (CMPO) dissolved in an ionic liquids, 1-butyl-3-methyl-imidazolium hexafluorophosphate, greatly enhances extractability and selectivity of lanthanide cations compared to that dissolved in conventional organic solvents; further, the recovery of lanthanides extracted into ionic liquids can be accomplished using several stripping solutions containing complexing agents. The possibility of utilizing ionic liquids as novel separation media in an industrial liquid-liquid extraction process was demonstrated.

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Authors and Affiliations

  1. Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 812-8581, Japan

    Kazunori Nakashima, Fukiko Kubota, Tatsuo Maruyama & Masahiro Goto

Authors
  1. Kazunori Nakashima
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  2. Fukiko Kubota
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  3. Tatsuo Maruyama
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  4. Masahiro Goto
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Nakashima, K., Kubota, F., Maruyama, T. et al. Ionic Liquids as a Novel Solvent for Lanthanide Extraction. ANAL. SCI. 19, 1097–1078 (2003). https://doi.org/10.2116/analsci.19.1097

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  • DOI: https://doi.org/10.2116/analsci.19.1097

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