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Catalysis of the Ortho-Parahydrogen Conversion

  • D. H. Weitzel
  • J. W. Draper
  • O. E. Park
  • K. D. Timmerhaus
  • C. C. Van Valin
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 2)

Abstract

Certain metallic oxides such as chromic oxide, cerium oxide, and neodymium oxide have been reported as highly effective catalysts for ortho-parahydrogen conversion because of their paramagnetic properties. We were familiar with the performance of chromic oxide on alumina pellets since this has been successfully used in the CEL liquefier s over a period of several years. However, no systematic study of catalysts for this application was available and it seemed likely that a material more effective than the chromic-alumina catalyst (actually developed for the petroleum industry) might be found.

Keywords

Space Velocity Cerium Oxide Ferric Oxide Chromic Oxide Liquid Hydrogen 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Selwood, P. W., Advances in Catalysis III, Academic Press Inc., New York, 1951.Google Scholar
  2. 2.
    Weiser, H. B., Inorganic Colloid Chemistry, VII, The Hydrous Oxides and Hydroxides, John Wiley and Sons, Inc., 1935.Google Scholar

Copyright information

© Plenum Press, Inc., New York 1960

Authors and Affiliations

  • D. H. Weitzel
    • 1
  • J. W. Draper
    • 1
  • O. E. Park
    • 1
  • K. D. Timmerhaus
    • 1
  • C. C. Van Valin
    • 1
  1. 1.CELNational Bureau of StandardsBoulderUSA

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