Abstract
A mechanism is proposed for the mild oxidation of o-xylene on carbon catalysts. A characteristic feature of all stages of the mechanism is that they take place on basic (electron donor) centers, to which are bonded all the organic molecules and molecular oxygen participating in the reaction. The strong oxidation of o-xylene also takes place in parallel with the mild oxidation. A substantial difference between the mechanisms of phthalic anhydride and carbon dioxide formation may be caused by the different orientations of o-xylene during its adsorption, which predetermines the different directions of the subsequent attack by the oxygen. A comparison has been made of the catalytic properties of different carbons, and they have been compared with the catalytic properties of an industrial V205 catalyst.
Similar content being viewed by others
Literature cited
A. Yu. Lukomskaya, I. A. Tarkovskaya and V. V. Strelko, “Chemosorption of o-xylene on active carbons,” Teor. Eksp. Khim., 22, No. 3, 370–374 (1986).
A. Yu. Lukomskaya and I. A. Tarkovskaya, “Desorption of products from catalytic oxidation of o-xylene on carbon surfaces,” Teor. Eksp. Khim., 22, No. 4, 499–503 (1986).
T. G. Alkhazov and A. E. Lisovskii, Oxidative Dehydrogenation of Hydrocarbons [in Russian], Khimiya, Moscow (1980), p. 240.
I. A. Tarkovskaya, Oxidized Coal [in Russian], Naukova Dumka, Kiev (1981), p. 200.
V. G. Nikolaev and V. V. Strelko, Chemosorption on Active Carbons [in Russian], Naukova Dumka, Kiev (1979), p. 288.
Yu. I. Pyatnitskii, T. G. Skorbilina and I. A. Tarkovskaya, “Catalytic vapor phase oxidation of o-xylene on active carbons,” Katal. Kataliz., No. 19, 41–45 (1981).
M. Blanchard and D. Vanhove, “Oxidation catalyque de l'orthxylene (methyl 14C) sur oxide de vanadium,” Bull. Soc. Chim. France, No. 11, 4134 (1971).
Yu. I. Pyatnitskii, V. M. Vorotyntsev, and G. I. Golodets, “Catalytic oxidation of o-xylene on vanadium pentoxide,” Katal. Kataliz. No. 11, 27–43 (1974).
G. I. Golodets, Heterogeneous Catalytic Oxidation of Organic Materials [in Russian], Naukova Dumka, Kiev (1978), p. 376.
Author information
Authors and Affiliations
Additional information
Translated from Teoreticheskaya i éksperimental'naya Khimiya, Vol. 22, No. 5, pp. 619–625, September–October, 1986.
Rights and permissions
About this article
Cite this article
Lukomskaya, A.Y., Tarkovskaya, I.A. Vapor phase oxidation of o-xylene on carbon catalysts. Theor Exp Chem 22, 593–598 (1987). https://doi.org/10.1007/BF00522546
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00522546