Reactive distillation process for the production of methyl aceta

Details Reactive distillation process for the production of methyl aceta Reactive distillation process for the production of methyl aceta

1982-04-26

1984-03-06

Sever, Frank

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

203 35, 203DIG6, B01D 336

Patent

active

044355955

ABSTRACT:
The present invention provides a process for the production of high purity methyl acetate from methanol and glacial acetic acid wherein the acetic acid functions both as a reactant and as an extractive agent. The process comprises countercurrently flowing approximately stoichiometric quantities of acetic acid and methanol through a single reactive distillation column in the presence of an acidic catalyst which is preferably sulfuric acid. The column provides intimate contact between the acetic acid and the methanol and between the acetic acid and the azeotropes (methyl acetate/water and methyl acetate/methanol) which are formed in the column. At preferred catalyst concentrations, the residence time in the column is at least about two hours. The process further comprises continuously removing high purity methyl acetate from the top of the column and continuously removing water from the bottom of the column. In preferred embodiments, the process further comprises removing intermediate boiling compounds, such as methyl propionate, methyl butyrate, isopropyl acetate, and mixtures thereof, from a vapor sidedraw stream. The invention further comprises in preferred embodiments the use of a temperature control scheme whereby the overhead and the bottoms compositions are controlled by using two temperature control loops.

REFERENCES:
patent: 4370491 (1983-01-01), Bott et al.

Affiliated with

Also associated with

Rating

Reactive distillation process for the production of methyl aceta does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-742849