Recovery of Plutonium from Refractory Residues Using a Sodium Peroxide Pretreatment Process

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The recycle of plutonium from refractory residues is a necessary activity for the nuclear weapon production complex. Traditionally, high-fired plutonium oxide (PuO2) was leached from the residue matrix using a nitric acid/fluoride dissolving flowsheet. The recovery operations were time consuming and often required multiple contacts with fresh dissolving solution to reduce the plutonium concentration to levels where residual solids could be discarded. Due to these drawbacks, the development of an efficient process for the recovery of plutonium from refractory materials is desirable. To address this need, a pretreatment process was developed. The development program utilized a series of small-scale experiments ... continued below

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Rudisill, T.S. October 23, 2003.

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The recycle of plutonium from refractory residues is a necessary activity for the nuclear weapon production complex. Traditionally, high-fired plutonium oxide (PuO2) was leached from the residue matrix using a nitric acid/fluoride dissolving flowsheet. The recovery operations were time consuming and often required multiple contacts with fresh dissolving solution to reduce the plutonium concentration to levels where residual solids could be discarded. Due to these drawbacks, the development of an efficient process for the recovery of plutonium from refractory materials is desirable. To address this need, a pretreatment process was developed. The development program utilized a series of small-scale experiments to optimize processing conditions for the fusion process and demonstrate the plutonium recovery efficiency using ceramic materials developed as potential long-term storage forms for PuO2 and an incinerator ash from the Rocky Flats Environmental Technology Site (Rocky Flats) as te st materials.

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  • 13th Symposium on Separation Science and Technology, Gatlinburg, TN (US), 10/27/2003--10/30/2003

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  • Report No.: WSRC-MS-2003-00280
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 818269
  • Archival Resource Key: ark:/67531/metadc736067

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  • October 23, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 5, 2016, 2:33 p.m.

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Rudisill, T.S. Recovery of Plutonium from Refractory Residues Using a Sodium Peroxide Pretreatment Process, article, October 23, 2003; South Carolina. (digital.library.unt.edu/ark:/67531/metadc736067/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.