Process for recovering a lower alcohol from a catechol-lower alc

Details Process for recovering a lower alcohol from a catechol-lower alc Process for recovering a lower alcohol from a catechol-lower alc

1991-07-02

1992-04-14

Lone, Werren B.

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

Organic compounds

Oxygen containing

568747, 568804, 568854, 568868, 568870, C07C 2726, C07C 2974, C07C 3768

Patent

active

051050293

ABSTRACT:
A lower alcohol, for example, ethyl alcohol, is recovered from a reaction mixture resulted from a reaction of catechol with a lower alcohol in such a manner that the reaction mixture is distilled and separated into a distilled light vapor fraction comprising non-reacted lower alcohol and water and a residual fraction comprising a reaction product and non-reacted catechol; the distilled light vapor fraction is further distilled and separated into a distilled vapor fraction comprising the lower alcohol in an increased concentration and a residual water fraction; the distilled vapor fraction is fed to a gas-separating membrane module which allows water vapor to selectively permeate therethrough, and separated into a non-permeated fraction which comprises the lower alcohol in a high concentration, which is left in the feed side of the membrane, and a permeated fraction which comprises water in a high concentration, which is returned from the delivery side of the membrane to the further distilling step, and the non-permeated fraction is cooled and recovered.

REFERENCES:
patent: 3398061 (1968-08-01), Taul
patent: 4062900 (1977-12-01), Tanabe et al.

Affiliated with

Also associated with

Rating

Process for recovering a lower alcohol from a catechol-lower alc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for recovering a lower alcohol from a catechol-lower alc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovering a lower alcohol from a catechol-lower alc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2351081