Selective oxidation of butane on phosphorus-modified silica supported vanadia catalysts

W. D. Harding, K. E. Birkeland, Harold H Kung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


Triethylphosphate impregnation of 2.8 wt% V/SiO2 and subsequent controlled calcination produced phosphorus-modified supported vanadium catalysts. Phosphorus modification enhanced the yield of maleic anhydride in the partial oxidation of butane. Varying the phosphorus to vanadium atomic ratio from 0 to 2.8 increased the selectivity to maleic anhydride from 0 to approximately 48%. The selectivity was nearly constant up to 20% butane conversion and for different O2/C4H10 ratios. The Raman spectra of the phosphorus-modified samples had bands at 1040 and 930 cm-1, and broad unresolved bands between 580 and 540 cm-1. It was concluded that the active phases in these samples were α-VOPO4.

Original languageEnglish (US)
Pages (from-to)1-7
Number of pages7
JournalCatalysis Letters
Issue number1
StatePublished - Mar 1 1994


  • V/SiO
  • butane oxidation
  • calcination
  • maleic anhydride
  • triethylphosphate

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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