Americium separation from nuclear fuel dissolution using higher oxidation states.

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Much of the complexity in current AFCI proposals is driven by the need to separate the minor actinides from the lanthanides. Partitioning and recycling Am, but not Cm, would allow for significant simplification because Am has redox chemistry that may be exploited while Cm does not. Here, we have explored methods based on higher oxidation states of Am (AmV and AmVI) to partition Am from the lanthanides. In a separate but related approach we have also initiated an investigation of the utility of TRUEX Am extraction from thiocyanate solution. The stripping of loaded TRUEX by Am oxidation or SCN- has ... continued below

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Mincher, Bruce J. September 1, 2009.

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Much of the complexity in current AFCI proposals is driven by the need to separate the minor actinides from the lanthanides. Partitioning and recycling Am, but not Cm, would allow for significant simplification because Am has redox chemistry that may be exploited while Cm does not. Here, we have explored methods based on higher oxidation states of Am (AmV and AmVI) to partition Am from the lanthanides. In a separate but related approach we have also initiated an investigation of the utility of TRUEX Am extraction from thiocyanate solution. The stripping of loaded TRUEX by Am oxidation or SCN- has not yet proved successful; however, the partitioning of inextractable AmV by TRUEX shows promise.

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  • Report No.: INL/EXT-09-16805
  • Grant Number: DE-AC07-05ID14517
  • DOI: 10.2172/971364 | External Link
  • Office of Scientific & Technical Information Report Number: 971364
  • Archival Resource Key: ark:/67531/metadc927186

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  • September 1, 2009

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Jan. 4, 2017, 2:18 p.m.

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Mincher, Bruce J. Americium separation from nuclear fuel dissolution using higher oxidation states., report, September 1, 2009; [Idaho]. (digital.library.unt.edu/ark:/67531/metadc927186/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.