Patent ID: 7560608
Filing Date: 2009-07-14
Classification: B01J,C07C,Y02P

Abstract:
1. A method of preparing a xylene product comprising: forming a slurry of a binder-free ZSM-5 zeolite having a SiO removing water from the slurry to provide a non-steamed, phosphorus treated ZSM-5 zeolite catalyst without deposition of phosphorus onto the catalyst by organophosphorus vapor deposition, and wherein the resulting non-steamed, phosphorus treated ZSM-5 zeolite catalyst has a pore volume of from 0.2 ml/g or less; and contacting the treated zeolite catalyst with an aromatic feed of toluene and methanol under reaction conditions suitable for toluene methylation to provide a xylene product having greater than 80% para-xylene by total mixed xylenes.