Patent ID: 6039864
Filing Date: 2000-03-21
Classification: B01J,C07C,C10G,Y02P

Abstract:
A process of isomerizing a hydrocarbon feed containing an aromatic C.sub.8 stream comprising ethylbenzene, xylene isomers, or mixtures thereof comprising contacting said feed under isomerization conversion conditions with a zeolite bound zeolite catalyst that does not contain significant amounts of non-zeolitic binder, said catalyst comprising:(a) first crystals of a first zeolite selected from the group consisting of large pore zeolite and medium pore zeolite having an average particle size greater than about 0.1 micron average particle size; and,(b) a binder comprising second crystals of a second zeolite selected from the group consisting of large pore zeolite and medium pore zeolite having an average particle size less than said first crystals; wherein said second crystals are intergrown and form a coating or partial coating in said first crystals.