Ammoxidation of toluene to benzonitrile on vanadium-titanium oxides catalysts prepared by precipitation: The role of catalyst composition

Journal Article · Wed Apr 01 00:00:00 EST 1987 · Ind. Eng. Chem. Res.; (United States)

DOI:https://doi.org/10.1021/ie00064a001· OSTI ID:6414707

Cavalli, P; Cavani, F; Manenti, I; Trifiro, F

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), Vol. 26:4
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
NITRILES
CHEMICAL PREPARATION
TITANIUM OXIDES
CATALYTIC EFFECTS
PRECIPITATION
TOLUENE
OXIDATION
VANADIUM OXIDES
AMMONIA
CATALYST SUPPORTS
CATALYSTS
CHEMICAL COMPOSITION
CRYSTAL STRUCTURE
RUTILE
SOLUBILITY
ALKYLATED AROMATICS
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MATERIALS
MINERALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
SEPARATION PROCESSES
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
400201* - Chemical & Physicochemical Properties