Abstract
The hydrous ferric oxide (Fe2O3 ยท xH2O) catalyst developed by Loebenstein and Weitzel[1] has been shown to be quite effective for ortho-para hydrogen conversion. The desire to obtain maximum activity for the hydrous ferric oxide catalyst has led to various activation procedures by previous investigators[2,3,4]. These methods consisted of holding the catalyst at an elevated temperature while either pumping to a moderate vacuum or purging with a pure gas for some specified length of time.
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References
D. H. Weitzel, J. W. Draper, O. E. Park, K. D. Timmerhaus, and C. C. Van Valin, Advances in Cryogenic Engineering, Vol. 2, K. D. Timmerhaus (ed.), Plenum Press, New York (1960) p. 12.
R. N. Keeler and K. D. Timmerhaus, Advances in Cryogenic Engineering, Vol, 4, K. D. Timmerhaus (ed.), Plenum Press, New York (1960), p. 296.
J. F. Kucirha and G. E. Schmauch, โInvestigation of the Para-Ortho Shift of Hydrogen,โ ASD Quarterly Progress Report IV, Contract No. AF 33(616)-7506 (July, 1961).
L. E. Scott, Private communication (1961).
J. R. Purcell, J. W. Draper, and D. H. Weitzel, Advances in Cryogenic Engineering, Vol. 3, K. D. Timmerhaus (ed.), Plenum Press, New York (1960), p. 191.
P. H. Emmett and S. Brunauer, J. Am. Chem. Soc., Vol. 59, 1553 (1937).
H. B. Weiser, Inorganic Colloid Chemistry, John Wiley and Sons, New York (1935), p. 28.
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ยฉ 1963 Springer Science+Business Media New York
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Gini, D., Finch, F.T., Von Wald, J.L., Barrick, P.L. (1963). Activity, Surface Area, and Weight Loss Correlations for Hydrous Ferric Oxide Catalyst. In: Timmerhaus, K.D. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 8. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0528-7_21
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