Method of recovering carboxylic acids from dilute solutions

Details Method of recovering carboxylic acids from dilute solutions Method of recovering carboxylic acids from dilute solutions

1994-04-07

1996-02-20

Dawson, Robert A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, 210650, 210652, 210653, 210654, 210655, 210641, 203 10, 203 15, 203 16, 203 14, 203 43, 203 48, B01D 6100, B01D 1100

Patent

active

054926254

ABSTRACT:
A method for recovering carboxylic acids from a dilute aqueous solution thereof having a concentration below about ten percent (10%) by weight, which includes passing the dilute acid solution through a reverse osmosis separator, thereby producing a permeate substantially free of acid and a retentate having an acid concentration above about ten percent (10%) by weight. The retentate is contacted with a liquid extractant for acids to produce an acid-rich extractate and an acid-free raffinate. The acid is then recovered from the acid-rich extractate.

REFERENCES:
patent: 2953502 (1960-09-01), Binning et al.
patent: 3182043 (1965-05-01), Kirkland
patent: 3808267 (1975-04-01), Davis et al.
patent: 4576683 (1986-03-01), Cohen
patent: 4661208 (1987-04-01), Honma et al.
patent: 4729818 (1988-03-01), Berg
patent: 4808287 (1989-02-01), Hark
patent: 4838998 (1989-06-01), Davies et al.
patent: 4909939 (1990-03-01), Rickelton et al.
patent: 5104492 (1992-04-01), King et al.
patent: 5250182 (1993-10-01), Bento et al.
EPO Search Report for Application EP 94 306892, Feb. 2, 1995.

Affiliated with

Also associated with

Rating

Method of recovering carboxylic acids from dilute solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of recovering carboxylic acids from dilute solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of recovering carboxylic acids from dilute solutions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1354360