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Some aspects of neptunium acetohydroxamic acid chemistry under acidic conditions

Research output: Contribution to journalJournal article

Published

  • M. J. Sarsfield
  • R. J. Taylor
  • C. Boxall
  • F. Adrieux
  • H. E. Sims
Journal publication date2009
JournalRadiochimica Acta
Journal number4-5
Volume97
Number of pages4
Pages219-222
Original languageEnglish

Abstract

Hydroxamic acids are promising complexant based alternatives to the reductant (U4+ or Fe2+) based selective stripping of Np (and Pu) from a uranium loaded 30% TBP/OK solvent during the reprocessing of irradiated nuclear fuels. Acetohydroxamic acid (AHA) has the benefits of being both a reductant and complexant that efficiently strips Np (and Pu) from solvent phase without adding salt wastes to actinide separation processes. To model these processes, an understanding of Np-hydroxamate chemistry in aqueous and organic solvent is necessary. Three aspects of this system are discussed.