MODIFICATIONS FOR THE STR FUEL RECOVERY PROCESS

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In a program directed toward the optimization of the process chemistry of the STR hydrofluoric acid method of reprocessing zirconium-uranium alloy fuels, it was shown that the process can be modified to dissolve homogeneously fuels of higher uranium content by either hydrogen peroxide oxidation or dilution of the dissolver solution. Rate of corrosion of Monel was acceptable with both methods of dissolution. Phase and stability studies of the solvent extraction feed and waste solutions indicated that higher concentrations of zirconium and uranium could be used in the process streams. Metastable solutions were obtained when the currently used STR raffinate solutions ... continued below

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Pages: 52

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Parrett, O.W. December 1, 1960.

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Description

In a program directed toward the optimization of the process chemistry of the STR hydrofluoric acid method of reprocessing zirconium-uranium alloy fuels, it was shown that the process can be modified to dissolve homogeneously fuels of higher uranium content by either hydrogen peroxide oxidation or dilution of the dissolver solution. Rate of corrosion of Monel was acceptable with both methods of dissolution. Phase and stability studies of the solvent extraction feed and waste solutions indicated that higher concentrations of zirconium and uranium could be used in the process streams. Metastable solutions were obtained when the currently used STR raffinate solutions were evaporated. This operation was not favored for flowsheet use. The batch and continuous dissolution and solvent extraction flowsheets are given embodying the principal results of this study. (auth)

Physical Description

Pages: 52

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  • Other Information: Orig. Receipt Date: 31-DEC-61

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  • Report No.: IDO-14522
  • Grant Number: AT(10-1)-205
  • DOI: 10.2172/4117410 | External Link
  • Office of Scientific & Technical Information Report Number: 4117410
  • Archival Resource Key: ark:/67531/metadc868062

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • December 1, 1960

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Feb. 17, 2017, 7:10 p.m.

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Parrett, O.W. MODIFICATIONS FOR THE STR FUEL RECOVERY PROCESS, report, December 1, 1960; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc868062/: accessed July 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.