Silica-modified catalyst and use for selective production of...

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C - Chemistry, Metallurgy

07

C

252/11, 260/684

C07C 15/02 (2006.01) B01J 29/40 (2006.01) B01J 37/02 (2006.01) B01J 37/08 (2006.01) C07C 2/66 (2006.01) C07C 2/76 (2006.01) C07C 2/86 (2006.01) C07C 6/12 (2006.01) B01J 29/65 (2006.01) B01J 29/70 (2006.01) B01J 29/80 (2006.01)

Patent

CA 1214449

SILICA-MODIFTED CATALYST AND USE FOR SELECTIVE PRODUCTION OF PARA-DIALKYL SUBSTITUTED BENZENES Abstract The present invention relates to a method for preparing a zeolite composition comprising a crystalline zeolite having deposited thereon a coating of silica which extensively covers and resides substantially exclusively on the external surface thereof, and to the composition so prepared. The present invention also relates to a process for the selective conversion of aromatic hydrocarbon feedstocks to a product rich in para-dialkyl substituted benzenes over a catalyst composition comprising such a silica-modified zeolite composition.

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