Process for separating para-xylene

Details Process for separating para-xylene Process for separating para-xylene

1975-10-28

1976-12-14

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

208310Z, C07C 713

Patent

active

039976203

ABSTRACT:
A process for separating para-xylene in high purity and at high recovery from a feed stream comprising para-xylene and at least one other C.sub.8 aromatic isomer which employs an adsorbent comprising a type X or a type Y zeolite containing barium and strontium at the exchangeable cationic sites in a weight ratio of barium to strontium of from about 1:1 to about 15:1 to selectively adsorb para-xylene from the feed stream and a desorbent material comprising para-diethylbenzene to remove the adsorbed para-xylene from the adsorbent.

REFERENCES:
patent: 3686342 (1972-08-01), Neuzil
patent: 3696107 (1972-10-01), Neuzil
patent: 3707550 (1972-12-01), Stine et al.
patent: 3715409 (1973-02-01), Broughton
patent: 3734974 (1973-05-01), Neuzil

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