Catalytic transfer hydrogenation of 2-butanone over oxide catalysts

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Abstract

Catalytic transfer hydrogenation of 2-butanone with 2-propanol was studied in gas phase over a series of oxides of different acid-base properties. Although the basic oxides (MgO, La2O3) gave high initial conversions, these oxides underwent deactivation during the reaction. This deactivation could be partially prevented by a previous treatment with chloroform of the oxide. The amphoteric oxides (TiO2, ZrO2, Al2O3) were also active in this reaction. Increasing the acidic character of the catalyst (Nb2O5, WO3) led to a pronounced dehydration of 2-propanol. The results obtained over a series of rare earth oxides (La2O3, Sm2O3, Gd2O3, Dy2O3, Er2O3) revealed that beside the role of basic and acid sites a correlation seems to exist between the number of unpaired electrons of the metal ion and the catalytic activity, indicating the role of one electron donor sites.

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalReaction Kinetics and Catalysis Letters
Volume68
Issue number2
DOIs
Publication statusPublished - Jan 1 1999

Keywords

  • 2-butanone
  • 2-propanol
  • Catalytic transfer hydrogenation
  • Mgo, rare earth oxides

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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