Oxidation of butane over vanadium-phosphorus oxides of P/V ≥ 2

Daxiang Wang, Mayfair C. Kung, Harold H. Kung

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Abstract

Two mixed oxides of vanadium and phosphorus, with phosphorus to vanadium atomic ratio (P/V) about 2 and 2.4, were studied as catalysts for selective oxidation of butane to maleic anhydride. The sample with P/V about 2 was poorly crystalline, contained a small amount of V(V), and oxidized butane to maleic anhydride with about 50% selectivity. The sample with P/V about 2.4 contained well crystalline VO(PO3)2 phase, but it deactivated with time-on-stream with the formation of V(PO3)3. The results suggested that the two samples differed greatly in their rates of oxidation of the vanadium ions.

Original languageEnglish
Pages (from-to)9-17
Number of pages9
JournalCatalysis Letters
Volume65
Issue number1-3
Publication statusPublished - Mar 1 2000

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Keywords

  • Butane oxidation
  • Maleic anhydride
  • VPO catalysts
  • Vanadyl metaphosphate

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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