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New potentialities of the UNEX process using polyheterocyclic diamides

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Radiochemistry Aims and scope

Abstract

The possibilities of using 2,2′-bipyridine-6,6′-dicarboxamides in modified versions of the UNEX process were examined. The stability constants of complexes of Eu(III), Am(III), Th(IV), U(VI), and Np(V) ions with certain diamides substituted in the amide moiety or pyridine ring in acetonitrile were determined. The logarithms of the stability constants exceeded 7 for Eu(III) and reached 9 for 5f elements. The ability of the selected diamides in nitrobenzene and trifluoromethyl phenyl sulfone (FS-13) diluents to extract Am(III), Th(IV), U(VI), and Eu(III) was studied.

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Authors and Affiliations

  1. Moscow State University, Moscow, Russia

    N. E. Borisova, L. A. Korotkov & A. V. Ivanov

  2. Oregon State University, Corvallis, Oregon, 97331, USA

    L. A. Korotkov, J. Lapka & A. Paulenova

  3. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, korp. 4, Moscow, 119071, Russia

    E. V. Belova, S. V. Stefanovsky & B. F. Myasoedov

Authors
  1. N. E. Borisova
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  2. L. A. Korotkov
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  3. A. V. Ivanov
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  4. J. Lapka
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  5. A. Paulenova
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  6. E. V. Belova
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  7. S. V. Stefanovsky
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  8. B. F. Myasoedov
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Correspondence to N. E. Borisova.

Additional information

Original Russian Text © N.E. Borisova, L.A. Korotkov, A.V. Ivanov, J. Lapka, A. Paulenova, E.V. Belova, S.V. Stefanovsky, B.F. Myasoedov, 2016, published in Radiokhimiya, 2016, Vol. 58, No. 6, pp. 519–527.

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Borisova, N.E., Korotkov, L.A., Ivanov, A.V. et al. New potentialities of the UNEX process using polyheterocyclic diamides. Radiochemistry 58, 606–616 (2016). https://doi.org/10.1134/S1066362216060072

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  • DOI: https://doi.org/10.1134/S1066362216060072

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