Process for the separation of ethylbenzene

Details Process for the separation of ethylbenzene Process for the separation of ethylbenzene

1975-05-14

1976-12-14

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

208310Z, C07C 713

Patent

active

039976190

ABSTRACT:
An adsorptive separation process for separating ethylbenzene from a feed mixture comprising ethylbenzene and a plurality of xylene isomers, which process comprises contacting the feed mixture with a crystalline aluminosilicate adsorbent comprising a sodium-type Y zeolite having a SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio greater than about 4.5, selectively adsorbing substantially all of the said xylene isomers to the substantial exclusion of the ethylbenzene and recovering high-purity ethylbenzene. A desorption step may then be used to desorb the adsorbed xylene isomers. The process can be either in the liquid or vapor phase.

REFERENCES:
patent: 3636121 (1972-01-01), Stine et al.
patent: 3734974 (1973-05-01), Neuzil
patent: 3793386 (1974-02-01), Davis
patent: 3917734 (1975-11-01), DE Rosset

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