Separation of ethylene glycol from N-methylpyrrolidone

Details Separation of ethylene glycol from N-methylpyrrolidone Separation of ethylene glycol from N-methylpyrrolidone

1979-11-30

1981-06-30

Sever, Frank

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 70, 568868, B10D 336

Patent

active

042761263

ABSTRACT:
Mixtures containing ethylene glycol and N-methylpyrrolidone can be separated by azeotropic distillation by employing a C.sub.7 -C.sub.10 hydrocarbon, having a boiling point between 110.degree. and 190.degree. C. as the azeotroping agent. An azeotrope of the hydrocarbon and ethylene glycol constitutes the overhead product while the bottoms product comprises N-methylpyrrolidone.

REFERENCES:
patent: 3074962 (1963-01-01), Anderson
patent: 3809724 (1974-05-01), Golden
patent: 4200765 (1980-04-01), Goetz

Affiliated with

Also associated with

Rating

Separation of ethylene glycol from N-methylpyrrolidone 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 ethylene glycol from N-methylpyrrolidone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of ethylene glycol from N-methylpyrrolidone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2434145