Catalysis Letters

, Volume 11, Issue 3–6, pp 285–294 | Cite as

Ti-silicalite as catalyst for gas-phase ammoximation of cyclohexanone with molecular oxygen

  • D. P. Dreoni
  • D. Pinelli
  • F. Trifirò
  • Z. Tvaruzkova
  • H. Habersberger
  • P. Jiru
Article
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Accepted:

Abstract

The catalyst behaviour of titanium silicalite, which was found the most active and selective catalyst for liquid-phase ammoximation of cyclohexanone to the corresponding oxime with hydrogen peroxide, was investigated in the gas-phase ammoximation with molecular oxygen in and compared with those of pure silicalite and samples of vanadium and chromium silicalites. The results showed that Ti-silicalite is a selective catalyst not only in the reaction with hydrogen peroxide but also in the reaction with molecular oxygen. However, a big limitation was found in the poor activity of the silicalites which do not allow to reach high oxime yields.

Keywords

Ammoximation of cyclohexanone Ti-silicalite oxidation catalyst 
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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1991

Authors and Affiliations

  • D. P. Dreoni
    • 1
  • D. Pinelli
    • 1
  • F. Trifirò
    • 1
  • Z. Tvaruzkova
    • 2
  • H. Habersberger
    • 2
  • P. Jiru
    • 2
  1. 1.Department of Industrial Chemistry and MaterialsV.le del RisorgimentoBolognaItaly
  2. 2.Heyrovsky Institute of Physical Chemistry and Electrochemistry DolejskovaPrahaCzechoslovakia

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