Selective ammoxidation of propane over multicomponent oxide catalysts

The ammoxidation of propane to acrylonitrile was investigated over various multicomponent mixed oxidecatalysts. Bi 3GaMo 2 oxide, Bi 0.85V 0.55Mo 0.45 oxide and Bi 2TiMo oxide showed a good selectivity to acrylonitrile. The catalytic performance was strongly dependent on the components constituting...

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Bibliographic Details
Published in:Applied catalysis. A, General General, 1994-03, Vol.110 (2), p.207-216
Main Authors: Kim, Jong Seob, Woo, Seong Ihl
Format: Article
Language:English
Subjects:
acrylonitrile
Catalysis
Catalytic reactions
Chemistry
doping effect
Exact sciences and technology
General and physical chemistry
propane ammoxidation
scheelite structure
support effect
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The ammoxidation of propane to acrylonitrile was investigated over various multicomponent mixed oxidecatalysts. Bi 3GaMo 2 oxide, Bi 0.85V 0.55Mo 0.45 oxide and Bi 2TiMo oxide showed a good selectivity to acrylonitrile. The catalytic performance was strongly dependent on the components constituting the oxides due to the concentration of defects, the nature of the component and the mixed oxide phases. The effect of support type on the catalytic performance of Bi 0.85V 0.55Mo 0.45 oxide showed that selectivity to acrylonitrile decreased in the order silica > alumina > magnesia. The catalytic performance of Bio 0.85V 0.55Mo 0.45 oxide was improved by the addition of a small amount of a component such as magnesium, calcium and tellurium. The catalytic performance of Bi 3GaMo 2, oxide catalyst, however, decreased significantly with the addition of a smallamount of alkali metal (Li, Na, K, Cs).
ISSN:0926-860X
1873-3875
DOI:10.1016/0926-860X(94)80197-5