DISSOLUTION OF ZIRCONIUM MATRIX FUELS IN MOLTEN FLUORIDE SALTS

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The application of the Volatility Process for reprocessing spent reactor fuels to zirconium fuel elements requires the conversion of the fuel to a fluoride form. This conversion can be accomplished by the dissolution of such fuels in a bath of molten fluoride salts with a hydrogen fluoride sparge. Studies with dummy zirconium fuel elements showed dissolution rates averaging 2 mg/sq cm-min. The effect of submergence, geometrical configuration, and HF impingement rate appeared more significant than the effect of temperature. Experiments with partially submerged elements have indicated that at temper~tures in the neighborhood of 700 icient laborato C the gas phase ... continued below

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Pages: 18

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Horton, R.W. & Whatley, M.E. January 30, 1959.

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Description

The application of the Volatility Process for reprocessing spent reactor fuels to zirconium fuel elements requires the conversion of the fuel to a fluoride form. This conversion can be accomplished by the dissolution of such fuels in a bath of molten fluoride salts with a hydrogen fluoride sparge. Studies with dummy zirconium fuel elements showed dissolution rates averaging 2 mg/sq cm-min. The effect of submergence, geometrical configuration, and HF impingement rate appeared more significant than the effect of temperature. Experiments with partially submerged elements have indicated that at temper~tures in the neighborhood of 700 icient laborato C the gas phase reaction rate can exceed the salt phase rate. The use of the process involves problems with corrosion, with entrainment of solids in the off gas, and with the recovery and recycle of the hydrogen fluoride. Tentative solutions to these problems have been studied. (auth)

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Pages: 18

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  • Other Information: For presentation at the American Chemical Society's Nuclear Technology Sumposium, Boston, April 5-10, 1959. Orig. Receipt Date: 31-DEC-59

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  • Report No.: CF-59-1-115
  • Grant Number: W-7405-ENG-26
  • DOI: 10.2172/4294778 | External Link
  • Office of Scientific & Technical Information Report Number: 4294778
  • Archival Resource Key: ark:/67531/metadc1016431

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 30, 1959

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

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  • Oct. 23, 2017, 3:02 p.m.

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Horton, R.W. & Whatley, M.E. DISSOLUTION OF ZIRCONIUM MATRIX FUELS IN MOLTEN FLUORIDE SALTS, report, January 30, 1959; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc1016431/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.