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Catalysis Letters

, Volume 2, Issue 4, pp 201–210 | Cite as

The nature of the active phase of the Fe/K-catalyst for dehydrogenation of ethylbenzene

  • M. Muhler
  • R. Schlögl
  • A. Reller
  • G. Ertl
Article

Abstract

The industrial catalyst for high temperature dehydrogenation of ethylbenzene based on iron and potassium oxides undergoes, under reaction conditions, essentially a transformation into magnetite, Fe3O4, and a mixture of ternary oxides containing trivalent iron, viz. K2Fe22O34 and KFeO2. The latter compound constitutes the outside of the catalyst particles and is indeed the catalytically active phase.

Keywords

Oxide Iron Potassium Physical Chemistry Catalysis 
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]
    H. Ohlinger and S. Stadelmann, in:Ullmann's Enzyklopädie der Technischen Chemie, Vol. 16 (Urban & Schwarzenberg, München, 1965) p. 460.Google Scholar
  2. [2]
    E.H. Lee, Catal. Rev.-Sci. Eng. 8 (1975) 285.Google Scholar
  3. [3]
    A. Vijh, J. Chim. Phys. 72 (1975) 5.Google Scholar
  4. [4]
    T. Hirano, Appl. Catal. 26 (1986) 65; 28 (1986) 119.Google Scholar
  5. [5]
    W. Mross, in:Fortschritte in der Katalyseforschung, DECHEMA Statusseminar, Frankfurt 1987, p. 173.Google Scholar
  6. [6]
    A. Wells,Structural Inorganic Chemistry, 4th ed. (Oxford University Press, 1975).Google Scholar
  7. [7]
    J. Koppe, I. Rapthel and P. Kraak, Chem. Techn. 40 (1988) 81.Google Scholar
  8. [8]
    M. Muhler, R. Schlögl and G. Ertl, Surface Sci. 189/190 (1987) 69.Google Scholar
  9. [9]
    M. Muhler, R. Schlögl and G. Ertl, Proc. 9th Int. Congr. Catal., Calgary 1988, p. 1758.Google Scholar
  10. [10]
    M. Muhler, R. Schlögl and G. Ertl, Surf. Interface Anal. 12 (1988) 233.Google Scholar
  11. [11]
    H.P. Bonzel, G. Broden and H.J. Krebs, Appl. Surf. Sci. 16 (1983) 373.Google Scholar

Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1989

Authors and Affiliations

  • M. Muhler
    • 1
  • R. Schlögl
    • 1
  • A. Reller
    • 1
    • 2
  • G. Ertl
    • 1
  1. 1.Fritz-Haber-Institut der Max-Planck-GesellschaftBerlin 33West Germany
  2. 2.Institut für Anorganische ChemieUniversität ZürichZürichSwitzerland

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