Y-85 AND MODIFIED LZ-210 ZEOLITES

摘要

Catalysts for converting polyalkylaromatics to monoalkylaromatics, particularly cumene and ethyl benzene are disclosed which comprise aY-85 or a modified LZ-210 zeolite. For cumene and ethylbenzene production, a disclosed catalyst, made of 80 wt% zeolite and 20 wt% alumina binder on a volatile-free basis, has one or more of the following physical characteristics: (1) an absolute intensity of the Y-85 or modified LZ-210 zeolite as measured by X-ray diffraction (XRD) of preferably at least 50 and (2) a framework aluminum of the Y-85 or modified LZ-210 zeolite of preferably at least 60 % of the aluminum of the Y-85 or modified LZ-210 zeolite.