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Extraction of U(VI), Th(IV), Pu(IV), and Am(III) from nitric acid solutions with polyfunctional organophosphorus acids

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Abstract

Extraction of microamounts of U(VI), Th(IV), Pu(IV), and Am(III) nitrates from aqueous HNO3 solutions with solutions of (diphenylphosphinylmethyl)phenylphosphinic, (di-p-tolylphosphinylmethyl)phenylphosphinic, and (dioctylphosphinylmethyl)phosphinic acids and of butyl hydrogen (diphenylphosphinylmethyl)phosphonate in organic diluents was studied. The metal: extractant stoichiometric ratio in the extractable complexes was determined, and the diluent effect on the extraction efficiency was examined. The possibility of using a macroporous polymeric sorbent impregnated with (dioctylphosphinylmethyl)phenylphosphinic acid for concentrating metal ions from HNO3 solutions was demonstrated.

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Authors and Affiliations

  1. Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

    A. N. Turanov

  2. Institute of Technological Problems of Microelectronics and Ultrapure Materials, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

    V. K. Karandashev

  3. Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

    A. N. Yarkevich & Z. V. Safronova

  4. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia

    N. I. Rodygina & A. M. Fedoseev

Authors
  1. A. N. Turanov
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  2. V. K. Karandashev
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  3. A. N. Yarkevich
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  4. Z. V. Safronova
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  5. N. I. Rodygina
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  6. A. M. Fedoseev
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Original Russian Text © A.N. Turanov, V.K. Karandashev, A.N. Yarkevich, Z.V. Safronova, N.I. Rodygina, A.M. Fedoseev, 2007, published in Radiokhimiya, 2007, Vol. 49, No. 6, pp. 541–545.

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Turanov, A.N., Karandashev, V.K., Yarkevich, A.N. et al. Extraction of U(VI), Th(IV), Pu(IV), and Am(III) from nitric acid solutions with polyfunctional organophosphorus acids. Radiochemistry 49, 618–623 (2007). https://doi.org/10.1134/S1066362207060148

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  • DOI: https://doi.org/10.1134/S1066362207060148

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