Process for the preparation of...

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C - Chemistry, Metallurgy

07

C

C07C 15/02 (2006.01) C07C 2/66 (2006.01) C07C 2/86 (2006.01) C07C 7/14 (2006.01) B01J 27/18 (2006.01) B01J 27/182 (2006.01) B01J 27/188 (2006.01)

Patent

CA 2158307

A process for preparing 1,2,4,5- dimethyldiisopropylbenzene includes conducting alkylation of p-xylene with propylene to produce an alkylation product, and crystallizing the alkylation product. A heteropolyacid- supported catalyst can be used as an alkylation catalyst for the reaction. The reaction solution produced from the alkylation reaction can be distilled before crystallization to improve yield and purity even more.

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