Collect. Czech. Chem. Commun. 1996, 61, 1675-1680

Oxidation of Toluene Over V2O5-Sb2O3/TiO2 Catalysts. Enhancement of Selectivity Towards Benzoic Acid

Marcel Antol, Alexander Kaszonyi and Milan Hronec

Department of Organic Technology, Slovak Technical University, Radlinského 9, 812 37 Bratislava, Slovak Republic


The effect of reaction parameters, additives and cooxidants on the selectivity of toluene oxidation to benzoic acid in the vapor phase has been studied. The presence of ethanol as cooxidant in the reaction stream does not improve the selectivity of toluene oxidation towards partial oxidation products via methyl group oxidation. However, the presence of carbon dioxide has a positive effect on the selectivity to benzoic acid formation. The catalysts were characterized by temperature programmed reduction.

Keywords: Oxidation; Toluene; Benzoic acid; V2O5; CO2.