Uphill Transport of Rare-Earth Metals through a Highly Stable Supported Liquid Membrane Based on an Ionic Liquid

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  • KUBOTA Fukiko
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
  • SHIMOBORI Yousuke
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
  • KOYANAGI Yusuke
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
  • SHIMOJO Kojiro
    Division of Environment and Radiation Science, Nuclear Science and Energy Directions, Japan Atomic Energy Agency
  • KAMIYA Noriho
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
  • GOTO Masahiro
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu University

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  • Uphill transport of rare earth metals through highly stable supported liquid membrane based on ionic liquid

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Abstract

We have developed a highly stable supported liquid membrane based on ionic liquids (ILs) for the separation of rare-earth metals, employing N,N-dioctyldiglycol amic acid as a mobile carrier. The quantitative transport of Y and Eu through the membrane was successfully attained, and separation from metal impurities, Zn, was efficiently accomplished. A membrane stable enough for long-term operation was constructible from imidazolium-based ILs having a longer alkyl chain, such as octyl or dodecyl groups in an imidazolium cation.

Journal

  • Analytical Sciences

    Analytical Sciences 26 (3), 289-290, 2010

    The Japan Society for Analytical Chemistry

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