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

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

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

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
Pages (from-to)1-7
Number of pages7
JournalCatalysis Letters
Volume28
Issue number1
DOIs
Publication statusPublished - Mar 1994

Fingerprint

Butane
butanes
Catalyst supports
Silicon Dioxide
Phosphorus
phosphorus
Silica
Maleic Anhydrides
silicon dioxide
catalysts
Oxidation
Vanadium
oxidation
Maleic anhydride
anhydrides
vanadium
selectivity
Impregnation
Calcination
roasting

Keywords

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

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

Selective oxidation of butane on phosphorus-modified silica supported vanadia catalysts. / Harding, W. D.; Birkeland, K. E.; Kung, Harold H.

In: Catalysis Letters, Vol. 28, No. 1, 03.1994, p. 1-7.

Research output: Contribution to journalArticle

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AB - 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.

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