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Separation of Americium from Europium Using Liquid Membrane Impregnated with Organodithiophosphinic Acid

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Abstract

The selective transport of Am across a supported liquid membrane (SLM) has been investigated by using bis (2,4,4-trimethylpentyl)dithiophosphinic acid (Cyanex 301) as a mobile carrier. This extractant containing soft donor atoms exhibits strong affinity for actinoids, giving a large separation factor between trivalent Am and Eu. Separation of Am from Eu was achieved by an SLM containing highly purified Cyanex 301. Americium was preferentially transported across the SLM and concentrated in the product solution, while most of Eu remained in the feed solution.

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Authors and Affiliations

  1. Institute for Advanced Materials Processing, Tohoku University, Katahira-2, Aoba-ku, Sendai, 980-8577, Japan

    H. Hoshi

  2. Institute for Advanced Materials Processing, Tohoku University, Katahira-2, Aoba-ku, Sendai, 980-8577, Japan

    A. Tsuyoshi & K. Akiba

Authors
  1. H. Hoshi
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  2. A. Tsuyoshi
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  3. K. Akiba
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Hoshi, H., Tsuyoshi, A. & Akiba, K. Separation of Americium from Europium Using Liquid Membrane Impregnated with Organodithiophosphinic Acid. Journal of Radioanalytical and Nuclear Chemistry 243, 621–624 (2000). https://doi.org/10.1023/A:1010641413379

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  • DOI: https://doi.org/10.1023/A:1010641413379

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