Toluene oxidn. over Pb/Li/MgO is investigated in a tubular fixed bed reactor at low conversions. A periodic process alternating toluene oxidn. in absence of oxygen in the feed and regeneration of the catalyst by oxygen presents important changes in product distribution in comparison with steady-state oxidn. Periodic conditions increase the selectivity in favor of the coupling reaction which leads to 1,2-diphenylethane and avoid formation of oxygenated products. [on SciFinder (R)]
Title
Oxidative coupling of toluene under periodic conditions on Pb/Li/MgO: a selective pathway to 1,2-diphenylethane
Published in
Dynamics of Surfaces and Reaction Kinetics in Heterogeneous Catalysis
Series
Studies in Surface Science and Catalysis, 109
Pages
469-477
Date
1997
Publisher
Amsterdam, Elsevier
Note
CAN 128:167213 25-2 Benzene, Its Derivatives, and Condensed Benzenoid Compounds Institute of Chemical Engineering,Swiss Federal Institute of Technology,Lausanne,Switz. Journal 0167-2991 written in English. 1309-48-4 (Magnesium oxide); 7439-92-1 (Lead); 7439-93-2 (Lithium) Role: CAT (Catalyst use), USES (Uses) (selective prepn. of 1,2-diphenylethane by oxidative coupling of toluene under periodic conditions on Pb/Li/MgO); 108-88-3 (Toluene) Role: RCT (Reactant), RACT (Reactant or reagent) (selective prepn. of 1,2-diphenylethane by oxidative coupling of toluene under periodic conditions on Pb/Li/MgO); 103-29-7P (1,2-Diphenylethane) Role: SPN (Synthetic preparation), PREP (Preparation) (selective prepn. of 1,2-diphenylethane by oxidative coupling of toluene under periodic conditions on Pb/Li/MgO)
