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Distribution and identification of Plutonium(IV) species in tri-n-butyl phosphate/HNO3 extraction system containing acetohydroxamic acid

  • Radiochemistry
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Abstract

There was a significant research progress achieved with the aim to modify conventional PUREX process by stripping of plutonium from the tri-n-butyl phosphate (TBP) extraction product in the form of non-extractable complexes upon addition of back-hold complexation agents. The present paper reports effects of such salt-free complexant, acetohydroxamic acid (HAHA), on distribution ratio of Pu(IV) under wide concentration of nitric acid and additional nitrate. General formula of plutonium species present in the organic phase can be described as Pu(OH)x(AHA)y(NO3)4−x−y·2TBP·wHNO3.

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Authors and Affiliations

  1. Radiation Center, Oregon State University, Corvallis, OR, 97331-5903, USA

    P. Tkac

  2. Department of Nuclear Engineering & Radiation Health Physics, Oregon State University, Corvallis, OR, 97331-5903, USA

    A. Paulenova

  3. Argonne National Laboratory, Chemical Technology Division, Argonne, IL, 60439-4837, USA

    G. F. Vandegrift & J. F. Krebs

Authors
  1. P. Tkac
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  2. A. Paulenova
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  3. G. F. Vandegrift
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  4. J. F. Krebs
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Correspondence to A. Paulenova.

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Tkac, P., Paulenova, A., Vandegrift, G.F. et al. Distribution and identification of Plutonium(IV) species in tri-n-butyl phosphate/HNO3 extraction system containing acetohydroxamic acid. J Radioanal Nucl Chem 280, 339–342 (2009). https://doi.org/10.1007/s10967-009-0524-6

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  • DOI: https://doi.org/10.1007/s10967-009-0524-6

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