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Separation of thorium, uranium and plutonium by neutral and basic organic extractants

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Abstract

Separation of thorium, uranium and plutonium by basic tertiary amine, Alamine-336 and neutral organophosphoric extractant tri-n-octylphosphinoxide in xylene and cyclohexane solutions has been investigated. According to results obtained, Alamine-336 was chosen for the extraction of atmospheric precipitation samples. Separation process with tri-n-octylphosphinoxide based extraction can lead to higher chemical yields, but according to our results reproducibility is worse due to incomplete back-extraction of elements from organic phase. Analysis of simulated 1001 sample concentrate has shown significant effect of Ca2+, Fe3+ and Mn2+ ions concentration.

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Authors and Affiliations

  1. Institute of Radioecology and Applied Nuclear Techniques, Košice, (Czechoslovakia)

    I. Burčík

  2. Department of Radiochemistry, Faculty of Science, Comenius University, Bratislava, (Czechoslovakia)

    V. Mikulaj

Authors
  1. I. Burčík
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  2. V. Mikulaj
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Burčík, I., Mikulaj, V. Separation of thorium, uranium and plutonium by neutral and basic organic extractants. Journal of Radioanalytical and Nuclear Chemistry, Articles 150, 247–253 (1991). https://doi.org/10.1007/BF02035309

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  • DOI: https://doi.org/10.1007/BF02035309

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