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Theoretical Foundations of Chemical Engineering

, Volume 53, Issue 5, pp 925–932 | Cite as

Development and Pilot Testing of New Flow Diagrams for Plutonium Purification at the RT-1 Plant

  • K. V. Bugrov
  • V. G. Korotaev
  • K. K. Korchenkin
  • M. V. Logunov
  • S. A. Lukin
  • A. N. MashkinEmail author
  • A. B. Melent’evEmail author
  • N. S. Samarina
CHEMISTRY AND TECHNOLOGY OF RARE, TRACE, AND RADIOACTIVE ELEMENTS
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Abstract

To modernize the extraction facility of the RT-1 plant, two flow diagrams for plutonium purification have been developed. In the first flow diagram, the Pu(IV)–Np(IV) valence pair is stabilized and both Pu and Np are stripped and, in the second flow diagram, the Pu(IV)–Np(V) valence pair is stabilized and only Pu is stripped. The problem of stabilizing the pair of the desired components in the required valence state is solved using reagents that had already been used at the RT-1 plant: hydrogen peroxide, hydrazine nitrate, and a catalyst (Fe). Both flow diagrams are adapted to the extraction facility of the plant with minimum changes in equipment and successfully pass extended process tests. As the result of this work, the volume and salt content of the raffinate are reduced.

Keywords:

SNF reprocessing liquid extraction plutonium neptunium technetium 

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • K. V. Bugrov
    • 1
  • V. G. Korotaev
    • 1
  • K. K. Korchenkin
    • 1
  • M. V. Logunov
    • 1
  • S. A. Lukin
    • 1
  • A. N. Mashkin
    • 1
    Email author
  • A. B. Melent’ev
    • 1
    Email author
  • N. S. Samarina
    • 1
  1. 1.PO MayakOzerskRussia

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