The Choice in Thorium Oxide Slurries for the Prevention of Caking in Circulating Systems

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Description

A qualitative theory for cake formation in ThO2 slurries is presented. The sphere formation which occurs in "Standard" slurry can be explained on the same basis. The irregular and unpredictable yield strength is easily fitted into the theory. On the basis of this theory, the writer has been led to the conclusion that only colloidally stable slurries, or slurries with crystallites or comminution-resistant particles which are large enough to overcome colloidal effects (probably larger than 0.1u) can be used with assurance in the ThO2 reactor system. This conclusion holds for 300 gm/kg slurries as well as for more concentrated mixtures.

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13 pages

Creation Information

Lyon, R. N. April 22, 1957.

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  • Main Title: The Choice in Thorium Oxide Slurries for the Prevention of Caking in Circulating Systems
  • Series Title: CF (Series)
  • Series Title: Oak Ridge National Laboratory Reports
  • Added Title: Oak Ridge National Laboratory Report CF-57-4-77

Description

A qualitative theory for cake formation in ThO2 slurries is presented. The sphere formation which occurs in "Standard" slurry can be explained on the same basis. The irregular and unpredictable yield strength is easily fitted into the theory. On the basis of this theory, the writer has been led to the conclusion that only colloidally stable slurries, or slurries with crystallites or comminution-resistant particles which are large enough to overcome colloidal effects (probably larger than 0.1u) can be used with assurance in the ThO2 reactor system. This conclusion holds for 300 gm/kg slurries as well as for more concentrated mixtures.

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13 pages

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Digitized from microopaque cards (1).

Includes bibliographic references (page 13).

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  • Report No.: CF-57-4-77
  • Grant Number: W-7405-eng-26
  • SuDoc Number: Y 3.At 7:22/CF-57-4-77
  • Accession or Local Control No: metadc1202896
  • Archival Resource Key: ark:/67531/metadc1202896

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  • April 22, 1957

Added to The UNT Digital Library

  • July 9, 2023, 5:30 p.m.

Description Last Updated

  • April 18, 2024, 2:07 p.m.

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Thumbnail image of item number 1 in: 'The Choice in Thorium Oxide Slurries for the Prevention of Caking in Circulating Systems'.
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Lyon, R. N. The Choice in Thorium Oxide Slurries for the Prevention of Caking in Circulating Systems, report, April 22, 1957; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1202896/: accessed September 15, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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