Dehydrocoupling of toluene

C - Chemistry – Metallurgy – 07 – C

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260/681.4

C07C 15/52 (2006.01) C07C 2/84 (2006.01)

Patent

CA 1139319

ABSTRACT OF THE DISCLOSURE Tolueno dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula: Image where M1 is bismuth and M2 is at least one element selected from indium, silver, Group 2a of the Feriodic Table of the Elements, ant mixtures thereof, and where- in a is 1, b is 0.01 to 100, and x is a number taken to satisfy the average valences of M1 ant M2 in the oxi- dation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composi- tion can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehytrocoupling reac- tion when oxygen or an oxygen-containing gas is heated with the toluene.

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