The catalyst and method of manufacturing for the para-xylene production by an alkylation reaction or a disproportionation reaction of toluene, and para-xylene manufacturing method using the same.

摘要

PROBLEM TO BE SOLVED: To provide a novel catalyst having molecular sieve action (or shape selectivity) and excellent in catalytic activity, and a method capable of efficiently producing high-purity paraxylene dispensing with an isomerization process and/or an absorption separation process.;SOLUTION: The catalyst is obtained by modifying the outer surface of MFI type zeolite having a crystal diameter of 20-300 nm with silicate wherein the thickness of the silicate is 0.5-20 nm. Alongside provided is a method of producing paraxylene comprising carrying out alkylation or disproportionation reaction by contacting the catalyst with benzene and/or toluene.;COPYRIGHT: (C)2011,JPO&INPIT