Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1997-06-25
1998-12-15
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
585831, G07C 713
Patent
active
058499814
ABSTRACT:
The cost of separating para-xylene from other xylene isomers and C.sub.9 aromatics by adsorption on zeolitic molecular sieves is reduced by the use of 1,4 diisopropylbenzene as a relatively high boiling desorbent. The desorbent has surprisingly high strength and selectivity characteristics with the preferred desorbent. The preferred adsorbent is an X zeolite containing barium or both barium and potassium ions at exchangeable cationic sites. The para-xylene components are selectively adsorbed onto the adsorbent. The non-adsorbed feed is then removed from the adsorbent and the para-xylene recovered by desorption.
REFERENCES:
patent: 3686342 (1972-08-01), Neuzil
patent: 3734974 (1973-05-01), Neuzil
patent: 3878127 (1975-04-01), Rosback
patent: 3997620 (1976-12-01), Neuzil
patent: 4001111 (1977-01-01), Geissler et al.
patent: 4029717 (1977-06-01), Healy et al.
patent: 4886930 (1989-12-01), Zinnen
patent: 5012038 (1991-04-01), Zinnen
patent: 5057643 (1991-10-01), Zinnen
patent: 5159131 (1992-10-01), Zinnen
Caldarola Glenn
Dang Thuan D.
McBride Thomas K.
Spears Jr. John F.
UOP LLC
LandOfFree
Adsorptive separation of para-xylene using isopropylbenzene deso does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adsorptive separation of para-xylene using isopropylbenzene deso, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adsorptive separation of para-xylene using isopropylbenzene deso will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1459947