Separation of acetic acid from dioxane by extractive distillatio

Details Separation of acetic acid from dioxane by extractive distillatio Separation of acetic acid from dioxane by extractive distillatio

1988-04-01

1989-01-31

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 57, 203 60, 203 61, 203 62, 203 63, 203 64, 203 65, 549377, 562608, B01D 340, C07C 5144, C07D31912

Patent

active

048013579

ABSTRACT:
Dioxane cannot be completely removed from dioxane and acetic acid mixtures by distillation because of the presence of the maximum azeotrope. Dioxane can be readily removed from dioxane-acetic acid mixtures by extractive distillation in which the extractive agent is dimethylsulfoxide, either alone or mixed with certain high boiling organic compounds. Examples of effective agents are dimethylsulfoxide; DMSO and octanoic acid; DMSO, hexanoic acid and isophorone.

REFERENCES:
patent: 2954392 (1960-09-01), Rylander
patent: 4007095 (1977-02-01), Wolf et al.
patent: 4035271 (1977-07-01), Nemtsov et al.
patent: 4285881 (1981-08-01), Yang

Affiliated with

Also associated with

Rating

Separation of acetic acid from dioxane by extractive distillatio 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 acetic acid from dioxane by extractive distillatio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of acetic acid from dioxane by extractive distillatio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-176197