Ammoxidation of toluene to benzonitrile on vanadium-titanium oxides catalysts prepared by precipitation: The role of catalyst composition
The catalytic behavior of V/sub 2/O/sub 5//TiO/sub 2/ catalysts prepared by the contemporaneous precipitation of vanadium and titanium oxides was tested in the reaction of toluene ammoxidation to benzonitrile. Generally, two kinds of vanadia species are formed on these catalysts: a vanadia species strongly interacting with the TiO/sub 2/ (insoluble in a basic medium) and soluble bulk vanadium oxide, which does not interact with the support. The relative amounts of the two species depend on the crystalline structure of the TiO/sub 2/. In particular, the latter species is prevalent in V/sub 2/O/sub 5//TiO/sub 2/ (rutile) catalysts, while the former predominates in V/sub 2/O/sub 5//TiO/sub 2/ (anatase) catalysts.
- Research Organization:
- Istituto di Tecnologie Chimiche Speciali, 40136 Bologna
- OSTI ID:
- 6414707
- Journal Information:
- Ind. Eng. Chem. Res.; (United States), Journal Name: Ind. Eng. Chem. Res.; (United States) Vol. 26:4; ISSN IECRE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ALKYLATED AROMATICS
AMMONIA
AROMATICS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MATERIALS
MINERALS
NITRILES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PRECIPITATION
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RUTILE
SEPARATION PROCESSES
SOLUBILITY
SYNTHESIS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TOLUENE
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES