Process for isomerizing alkyl aromatic hydrocarbons

Details Process for isomerizing alkyl aromatic hydrocarbons Process for isomerizing alkyl aromatic hydrocarbons

C - Chemistry, Metallurgy

07

C

260/689

C07C 5/22 (2006.01) B01J 23/62 (2006.01) B01J 23/652 (2006.01) C07C 5/27 (2006.01) C07C 15/00 (2006.01) C07C 15/02 (2006.01)

Patent

CA 1086779

ABSTRACT OF THE DISCLOSURE The present invention provides a process for isomerizing alkyl aromatic hydrocarbons which process comprises reacting a batch of said hydrocarbons with hydrogen and a catalyst under isomerising conditions, the process being performed in at least two successive steps the reaction being carried out in at least one step and the catalyst comprising a refractory inorganic oxide support having acid sites, having halogen present in combined form, and having metals on said support comprising: a) about 0.02 to 2% of at least one platinum metal, b) about 0.02 to 2% of at least one metal belonging to the group consisting of zirconium, titanium and tungsten, c) about 0.02 to 2% of tin; said weight percentages being based on the total weight of the catalyst.

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