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Ammoxidation of Propene over Antimony-Vanadium-Oxide Catalysts

Nilsson, Roland; Lindblad, Thomas and Andersson, Arne LU (1994) In Catalysis Letters 29. p.409-420
Abstract
Antimony-vanadium-oxide catalysts were prepared with various Sb/V ratios and were used for propene ammoxidation. It was observed that antimony in excess of the amount required for forming SbVO4 was required to have a catalyst that is selective to acrylonitrile formation. Characterisation of catalysts with FTIR revealed partial reduction of the oxidised phase Sb0.92V0.92O4 upon use to form Sb0.95V1.05O4. XPS data showed the surfaces of most selective catalysts to be further enriched with antimony in course of the catalytic reaction, thereby creating a surface structure that is selective. For acrylonitrile formation a yield of 55% was obtained at 90% of conversion. In propene oxidation, on the other hand, the yield for acrolein formation was... (More)
Antimony-vanadium-oxide catalysts were prepared with various Sb/V ratios and were used for propene ammoxidation. It was observed that antimony in excess of the amount required for forming SbVO4 was required to have a catalyst that is selective to acrylonitrile formation. Characterisation of catalysts with FTIR revealed partial reduction of the oxidised phase Sb0.92V0.92O4 upon use to form Sb0.95V1.05O4. XPS data showed the surfaces of most selective catalysts to be further enriched with antimony in course of the catalytic reaction, thereby creating a surface structure that is selective. For acrylonitrile formation a yield of 55% was obtained at 90% of conversion. In propene oxidation, on the other hand, the yield for acrolein formation was limited to 20% due to consecutive combustion of the aldehyde. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
propene ammoxidation, propene oxidation, antimony-vanadium-oxides, XPS, FTIR
in
Catalysis Letters
volume
29
pages
409 - 420
publisher
Springer
external identifiers
  • wos:A1994PW65900015
  • scopus:0001206979
ISSN
1011-372X
DOI
10.1007/BF00807120
language
English
LU publication?
yes
id
7c37cee0-9e25-45d2-9bcc-3a77a654404a (old id 35835)
date added to LUP
2007-06-15 15:52:08
date last changed
2017-01-01 05:15:02
@article{7c37cee0-9e25-45d2-9bcc-3a77a654404a,
  abstract     = {Antimony-vanadium-oxide catalysts were prepared with various Sb/V ratios and were used for propene ammoxidation. It was observed that antimony in excess of the amount required for forming SbVO4 was required to have a catalyst that is selective to acrylonitrile formation. Characterisation of catalysts with FTIR revealed partial reduction of the oxidised phase Sb0.92V0.92O4 upon use to form Sb0.95V1.05O4. XPS data showed the surfaces of most selective catalysts to be further enriched with antimony in course of the catalytic reaction, thereby creating a surface structure that is selective. For acrylonitrile formation a yield of 55% was obtained at 90% of conversion. In propene oxidation, on the other hand, the yield for acrolein formation was limited to 20% due to consecutive combustion of the aldehyde.},
  author       = {Nilsson, Roland and Lindblad, Thomas and Andersson, Arne},
  issn         = {1011-372X},
  keyword      = {propene ammoxidation,propene oxidation,antimony-vanadium-oxides,XPS,FTIR},
  language     = {eng},
  pages        = {409--420},
  publisher    = {Springer},
  series       = {Catalysis Letters},
  title        = {Ammoxidation of Propene over Antimony-Vanadium-Oxide Catalysts},
  url          = {http://dx.doi.org/10.1007/BF00807120},
  volume       = {29},
  year         = {1994},
}