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- W1982334228 abstract "V2O5/TiO2 (anatase) catalysts prepared by the coprecipitation technique were tested in the reaction of alkylaromatics ammoxidation to the corresponding nitriles. The main factors influencing the selectivity were the ammonia partial pressure and the amount of vanadia in the catalyst. NH3 was found to inhibit the overall reactant conversion relative to its oxidation. Moreover, ammonia stabilizes the intermediate of alkylaromatic activation, avoiding its combustion. At high hydrocarbon conversion, high degrees of ammonia combustion led to a decrease of the selectivity. The best catalytic performance was obtained with amounts of vanadia corresponding to the formation of a monolayer coverage of the anatase surface. For higher V2O5 content a strong increase of NH3 combustion led to decrease of the nitrile yield. The catalysts were found to be active and selective in the ammoxidation of toluene, p- and m-xylene and o-chlorotoluene." @default.
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- W1982334228 date "1987-01-01" @default.
- W1982334228 modified "2023-10-16" @default.
- W1982334228 title "Ammoxidation of alkylaromatics over V2O5/TiO2 catalysts" @default.
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- W1982334228 doi "https://doi.org/10.1016/0920-5861(87)80043-3" @default.
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