Bismuth molybdate catalysts : Preparation, characterization and activity of different compounds in the Bi---Mo---O system

P.A. Batist; J.F.H. Bouwens; G.C.A. Schuit

doi:10.1016/0021-9517(72)90196-0

Bismuth molybdate catalysts : Preparation, characterization and activity of different compounds in the Bi---Mo---O system

P.A. Batist, J.F.H. Bouwens, G.C.A. Schuit

Chemical Engineering and Chemistry

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Abstract

The influence on oxidation activity of the method of preparation of Bi---Mo catalysts and in particular the circumstances during the wet stage (precipitation, slurry reactions between preprecipitated oxyhydrates) have been investigated. It was found that active Bi/Mo = 2/1 catalysts have to be prepared by a slurry reaction starting from what is essentially (BiO) (NO3). Even the application of powdered crystals of compounds with this composition leads to active catalysts. Contrary to previous work, active 1/1 catalysts can only be prepared by precipitation but the phase formed is not stable against prolonged heating at temperatures around 500 °C.

Original language	English
Pages (from-to)	1-11
Number of pages	11
Journal	Journal of Catalysis
Volume	25
Issue number	1
DOIs	https://doi.org/10.1016/0021-9517(72)90196-0
Publication status	Published - 1972

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title = "Bismuth molybdate catalysts : Preparation, characterization and activity of different compounds in the Bi---Mo---O system",

abstract = "The influence on oxidation activity of the method of preparation of Bi---Mo catalysts and in particular the circumstances during the wet stage (precipitation, slurry reactions between preprecipitated oxyhydrates) have been investigated. It was found that active Bi/Mo = 2/1 catalysts have to be prepared by a slurry reaction starting from what is essentially (BiO) (NO3). Even the application of powdered crystals of compounds with this composition leads to active catalysts. Contrary to previous work, active 1/1 catalysts can only be prepared by precipitation but the phase formed is not stable against prolonged heating at temperatures around 500 °C.",

author = "P.A. Batist and J.F.H. Bouwens and G.C.A. Schuit",

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PY - 1972

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N2 - The influence on oxidation activity of the method of preparation of Bi---Mo catalysts and in particular the circumstances during the wet stage (precipitation, slurry reactions between preprecipitated oxyhydrates) have been investigated. It was found that active Bi/Mo = 2/1 catalysts have to be prepared by a slurry reaction starting from what is essentially (BiO) (NO3). Even the application of powdered crystals of compounds with this composition leads to active catalysts. Contrary to previous work, active 1/1 catalysts can only be prepared by precipitation but the phase formed is not stable against prolonged heating at temperatures around 500 °C.

AB - The influence on oxidation activity of the method of preparation of Bi---Mo catalysts and in particular the circumstances during the wet stage (precipitation, slurry reactions between preprecipitated oxyhydrates) have been investigated. It was found that active Bi/Mo = 2/1 catalysts have to be prepared by a slurry reaction starting from what is essentially (BiO) (NO3). Even the application of powdered crystals of compounds with this composition leads to active catalysts. Contrary to previous work, active 1/1 catalysts can only be prepared by precipitation but the phase formed is not stable against prolonged heating at temperatures around 500 °C.

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DO - 10.1016/0021-9517(72)90196-0

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Bismuth molybdate catalysts : Preparation, characterization and activity of different compounds in the Bi---Mo---O system

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