Transient kinetics of toluene partial oxidation over V/Ti oxide catalysts
Transient kinetics in the toluene oxidn. over V/Ti oxide catalysts prepd. by grafting and impregnation have been compared. V4+ cations are supposed to be the sites for the formation of electrophilic oxygen species participating in deep oxidn. Another oxygen species (probably nucleophilic) present on the oxidized catalyst surface are responsible for benzaldehyde formation. Selectivity of 80-100% can be obtained during the initial period of the reaction on the grafted catalysts in the presence of gaseous oxygen and during the interaction of toluene (without O2 in the mixt.) with partially reduced catalysts. [on SciFinder (R)]
Keywords: Oxidation; Oxidation catalysts; Oxidation kinetics (partial; transient kinetics of toluene partial oxidn. over V/Ti oxide catalysts) ; toluene partial oxidn vanadium titanium oxide transient kinetics; benzaldehyde prepn
Physical Organic Chemistry
Institute of Chemical Engineering,Swiss Federal Institute of Technology,Lausanne,Switz.
written in English.
124-38-9P (Carbon dioxide) Role: BYP (Byproduct), PREP (Preparation) (transient kinetics of toluene partial oxidn. over V/Ti oxide catalysts); 7727-18-6 (Vanadium chloride oxide (VCl3O); 13463-67-7 (Titania); 14974-48-2 (Vanadium oxalate); 22541-76-0 (Vanadium ion(4+) Role: CAT (Catalyst use), USES (Uses) (transient kinetics of toluene partial oxidn. over V/Ti oxide catalysts); 108-88-3 (Toluene) Role: PEP (Physical, engineering or chemical process), PRP (Properties), RCT (Reactant), PROC (Process), RACT (Reactant or reagent) (transient kinetics of toluene partial oxidn. over V/Ti oxide catalysts); 100-52-7P (Benzaldehyde) Role: SPN (Synthetic preparation), PREP (Preparation) (transient kinetics of toluene partial oxidn. over V/Ti oxide catalysts)
Record created on 2006-04-18, modified on 2016-08-08