Separation of m-xylene from o-xylene by extractive distillation

Details Separation of m-xylene from o-xylene by extractive distillation Separation of m-xylene from o-xylene by extractive distillation

1984-04-11

1984-12-18

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 58, 203 60, 203 63, 203 69, 203 56, 203 57, 203 61, 203 62, 203 64, 203 65, 585805, B01D 340, C07C 708

Patent

active

044889372

ABSTRACT:
m-Xylene is difficult to separate from o-xylene by conventional rectification or distillation because of the close proximity of their boiling points. m-Xylene can be readily separated from o-xylene by using extractive distillation in which the extractive agent is ethyl-2-hydroxybenzoate; propoxypropanol puls 1,4-butanediol; sulfolane plus dimethylsulfoxide plus ethyl benzoate.

REFERENCES:
patent: 2456561 (1948-12-01), Lake et al.
patent: 2721170 (1955-10-01), Johnson
patent: 2738372 (1956-03-01), Talbot
patent: 2880253 (1959-03-01), Jezl et al.
patent: 2957811 (1960-10-01), Geiser
patent: 3116224 (1963-12-01), Bailey, Jr.
patent: 4024028 (1977-05-01), Haskell

Affiliated with

Also associated with

Rating

Separation of m-xylene from o-xylene by extractive distillation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separation of m-xylene from o-xylene by extractive distillation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of m-xylene from o-xylene by extractive distillation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1987222