Reaction Kinetics and Catalysis Letters

, Volume 5, Issue 4, pp 465–470 | Cite as

Nature of the active centers of A Re2O7/Al2O3 catalyst in 1-butene disproportionation and isomerization

  • R. Edreva-Kardjieva
  • A. Andreev
Article

Abstract

It is shown that the catalytic activity of Re2O7/Al2O3 in olefin disproportionation is related to the Re(VII) (d0) valence state in the form of surface mesoperrhenate. Reduction to Re(VI) (d1) and Re(IV) (d3) results in the loss of activity in olefin disproportionation and the appearance of activity regarding the isomerization of 1-butene to 2-butene.

Keywords

Physical Chemistry Catalysis Catalytic Activity Active Center Valence State 

Abstract

Показано что активность катализатора Re2O7/Al2O3 в реакции диспропорционирования олефинов связана с валентным состоянием Re(VII) (d0) в форме „поверхностного мезоперрената”. Восстановление семивалентного рения до Re(VI) (d1) и Re(IV) (d3) ведет к потере активности катализатора в реакции диспропорционирования и к появлению активности в реакции изомеризации 1-бутена в 2-бутен.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. L. Banks, G. C. Bailey: Ind. Eng. Chem. Prod. Res. Dev.,3, 170 (1964).Google Scholar
  2. 2.
    A. Ismayel-Milanovic, J. M. Basset, H. Praliaud, M. Dufaux, L. de Mourgues: J. Catal.,31, 408 (1973).Google Scholar
  3. 3.
    S. Furukawa: Kogyo Kagaku Zasshi,74, 247 (1971).Google Scholar
  4. 4.
    L. F. Heckelsberg: U. S. Patent,3, 365, 513Google Scholar
  5. 5.
    C. P. C. Bradshaw, E. J. Howman, L. Turner: J. Catal.,7, 269 (1967).Google Scholar
  6. 6.
    R. Scholder, K. L. Huppert: Z. Anorg. Allg. Chem.,334, 209 (1964).Google Scholar
  7. 7.
    E. J. Baran, A. Mueller: Z. Anorg. Allg. Chem.,368, 168 (1969).Google Scholar
  8. 8.
    R. M. Edreva-Kardjieva, A. A. Andreev: to be published.Google Scholar
  9. 9.
    C. K. Jørgensen: Adsorption Spectra and Chemical Bonding in Complexes, Oxford. 1962.Google Scholar

Copyright information

© Akadémiai Kiadó 1976

Authors and Affiliations

  • R. Edreva-Kardjieva
    • 1
  • A. Andreev
    • 1
  1. 1.Institute of Organic ChemistryBulgarian Academy of SciencesSofiaBulgaria

Personalised recommendations