Patent ID: 6518471
Filing Date: 2003-02-11
Classification: C07C

Abstract:
A process for the selective production of meta-diisopropylbenzene, said process comprising the steps of:(a) contacting a C9+ aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene with benzene under conversion conditions with a catalyst comprising a molecular sieve selected from the group consisting of zeolite beta, and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including the d-spacing maxima at 12.4Â±0.25, 6.9Â±0.15, 3.57Â±0.07 and 3.42Â±0.07 Angstrom, said contacting step selectively converting ortho-diisopropylbenzene in the feedstock to produce an effluent in which the ratio of meta-diispropylbenzene to ortho-diispropylbenzene is greater than that of the feedstock; and then (b) feeding said effluent to a separation zone to recover from said effluent a product rich in meta-diisopropylbenzene.