Process Development for Permanganate Addition During Oxidative Leaching of Hanford Tanks Sludges

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Previous Bechtel National, Incorporated (BNI)-sponsored studies have targeted optimizing sodium permanganate for the selective oxidation of chromium from washed Hanford tank sludges (Rapko et al. 2004; Rapko et al. 2005). The recommendation from previous work was that contact with sodium permanganate in a minimally caustic solution, i.e., 0.1 to 0.25 M [OH-] initially, provided maximum Cr dissolution while minimizing concomitant Pu dissolution. At the request of BNI, further work on oxidative alkaline leaching was performed.

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Rapko, Brian M.; Lumetta, Gregg J.; Deschane, Jaquetta R.; Peterson, Reid A. & Blanchard, David L. October 30, 2007.

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Previous Bechtel National, Incorporated (BNI)-sponsored studies have targeted optimizing sodium permanganate for the selective oxidation of chromium from washed Hanford tank sludges (Rapko et al. 2004; Rapko et al. 2005). The recommendation from previous work was that contact with sodium permanganate in a minimally caustic solution, i.e., 0.1 to 0.25 M [OH-] initially, provided maximum Cr dissolution while minimizing concomitant Pu dissolution. At the request of BNI, further work on oxidative alkaline leaching was performed.

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  • Report No.: PNNL-16794
  • Grant Number: AC05-76RL01830
  • DOI: 10.2172/919716 | External Link
  • Office of Scientific & Technical Information Report Number: 919716
  • Archival Resource Key: ark:/67531/metadc895183

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  • October 30, 2007

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 30, 2016, 6:16 p.m.

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Rapko, Brian M.; Lumetta, Gregg J.; Deschane, Jaquetta R.; Peterson, Reid A. & Blanchard, David L. Process Development for Permanganate Addition During Oxidative Leaching of Hanford Tanks Sludges, report, October 30, 2007; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc895183/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.