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Digitale Medien

Selective oxidation of butane on phosphorus-modified silica supported vanadia catalysts (1994)

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

Springer

Catalysis letters 28 (1994), S. 1-7

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Details

ISSN: 1572-879X

Schlagwort(e): V/SiO2 ; triethylphosphate ; calcination ; maleic anhydride ; butane oxidation

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: 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.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00812463

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