Application of phosphorus- and nitrogen-containing organic compounds for the isolation of actinides and technetium from acid or basic aqueous solutions

  • Myasoedova G
  • Tananaev I
  • Myasoedov B
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Abstract

The derivatives of ethers of phosphoric acid, namely O-(2-alkyl) (diethylcarbamoylmethyl) phenylphosphinates (O2ADECMPP), were synthesized and tested for liquid-liquid extraction of transuranium elements, lanthanides and technetium in meta-nitrobenzotrifluoride or 1,2-dichlorethane from acidic solutions. The O-(ethylhexyl) (diethylcarbamoylmethyl) phenylphosphinate (O2EHDECMPP) was used to prepare chelating granulated sorbents. The family of chelating fibrous 'filled' sorbents POLYORGS-type shows, according to preliminary experiments, that Pu and Tc at concentrations around 10-5M can be recovered almost completely. POLYORGS show fast kinetics for sorption processes. © 2004 Académic ds sciences. Published by Elsevier SAS. All rights reserved.

Author-supplied keywords

  • Actinides
  • Separation by chelating effect
  • Tc

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Authors

  • Galina V. Myasoedova

  • Ivan G. Tananaev

  • Boris F. Myasoedov

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