Synthesis, characterization and catalytic behavior of cobalt molybdates for 1-butene oxidation to maleic anhydride

Umit Ozkan, Glenn L. Schrader

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

The selective oxidation of 1-butene to maleic anhydride over cobalt molybdate catalysts containing excess molybdenum trioxide was studied using a fixed bed, integral reactor system. Pure catalysts, as well as those containing excess molybdenum trioxide, were prepared by precipitation and by solid state reactiontechniques. Cobalt molybdate samples containing excess molybdenum trioxide were found to have a high selectivity (∼48%) for maleic anhydride whereas pure cobalt molybdate was completely nonselective. The catalytic behavior of this system was very similar to that of nickel molybdate catalysts containing excess molybdenum trioxide. Phase transformations were investigated using X-ray diffraction and laser Raman spectroscopy. It was shown that a-phase modification determines the catalytic reaction since b-phase is not stable under reaction conditions as verified by post-reaction characterization.

Original languageEnglish (US)
Pages (from-to)327-338
Number of pages12
JournalApplied Catalysis
Volume23
Issue number2
DOIs
StatePublished - Jun 16 1986

ASJC Scopus subject areas

  • Engineering(all)

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