Continuous distillation process for purifying alkanols

Details Continuous distillation process for purifying alkanols Continuous distillation process for purifying alkanols

1974-06-21

1976-06-01

Sofer, Jack

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 18, 203 83, 203 85, 260643R, B01D 334

Patent

active

039606724

ABSTRACT:
Pure C.sub.1 -C.sub.3 alkanols are prepared from crude water containing alcohols in a continuous distillation process which includes an extractive distillation zone into which water and crude alcohols are introduced and from which is removed an impurities stream and a dilute aqueous alcohol stream; an alcohol concentration zone into which is introduced a dilute alcohol stream from the extractive distillation zone from which is withdrawn pure concentrated alcohols, a low boiling impurities stream and a high boiling impurities stream; and an impurities concentration zone into which is introduced the impurities stream from the extractive distillation zone and the high and low boiling impurities streams from the alcohol concentration zone from which is withdrawn high and low boiling impurities and an alcohol containing stream which is recycled to the extractive distillation zone with the crude alcohols. Aqueous alkali solution is injected into the alcohol concentration zone above the point at which the high boiling impurities stream is withdrawn and below the point from which pure concentrated alcohols are withdrawn. In addition, the sump product from the alcohol concentration zone is discarded or neutralized and recycled to the upper portion of the extractive distillation zone.

REFERENCES:
patent: 2454734 (1948-11-01), Darlington et al.
patent: 2695867 (1954-11-01), Chambers
patent: 3014971 (1961-12-01), Wilson
patent: 3156629 (1964-11-01), Ester
patent: 3445345 (1969-05-01), Katzen et al.

Affiliated with

Also associated with

Rating

Continuous distillation process for purifying alkanols does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous distillation process for purifying alkanols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous distillation process for purifying alkanols will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2401689