Patent ID: 7939701
Filing Date: 2011-05-10
Classification: B01J,C07C,Y02P

Abstract:
1. An ion-exchanged xylene isomerization catalyst, comprising: about 1-about 99%, by weight, of at least one of MFI, MEL, EUO, FER, MFS, MTT, MTW, TON, MOR, and FAU zeolite; about 1-about 99%, by weight, of a binder comprising an aluminum phosphate; and a metal component consisting essentially of a noble metal component and an optional metal modifier, the noble metal component is present in a positive amount no more than about 350 ppm, by weight, of a noble metal based on the weight of the catalyst, and the optional metal modifier is selected from the group consisting of rhenium, germanium, lead, cobalt, nickel, indium, gallium, zinc, thallium, and combinations thereof; wherein the catalyst has a quotient of (CO area)/(weight % of the noble metal) of no more than about 0.10.