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Class Information
Number: 203/16
Name: Distillation: processes, separatory > Distilling to separate or remove only water > From organic compound > Organic acid > Acetic
Description: Processes in which the organic acid is acetic acid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7048835 |
System and method for acetic acid recovery during terephthalic acid production |
May. 23, 2006 |
| 6955743 |
Method for producing furfural, acetic acid and formic acid from spent pulp-cooking liquor |
Oct. 18, 2005 |
| 6793777 |
Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid |
Sep. 21, 2004 |
| 6695952 |
Method for the separation of and purification of an aqueous mixture consisting of the main components acetic acid and formic acid |
Feb. 24, 2004 |
| 6417128 |
Methods and replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst |
Jul. 9, 2002 |
| 5980696 |
Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid |
Nov. 9, 1999 |
| 5932182 |
Reactor for high temperature, elevated pressure, corrosive reactions |
Aug. 3, 1999 |
| 5916422 |
Method of purifying acetic acid |
Jun. 29, 1999 |
| 5516406 |
Process for purifying acids formed during liquid phase oxidation of butane |
May. 14, 1996 |
| 5500098 |
Process for regeneration of volatile acids |
Mar. 19, 1996 |
| 5492603 |
Apparatus for recovering acetic acid from aqueous streams |
Feb. 20, 1996 |
| 5492625 |
Method of recovering carboxylic acids from dilute solutions |
Feb. 20, 1996 |
| 5409579 |
Method for recovering acetic acid from aqueous streams |
Apr. 25, 1995 |
| 5399751 |
Method for recovering carboxylic acids from aqueous solutions |
Mar. 21, 1995 |
| 5167774 |
Dehydration of acetic acid by extractive distillation |
Dec. 1, 1992 |
| 5160412 |
Dehydration of acetic acid by azeotropic distillation |
Nov. 3, 1992 |
| 5073267 |
Process for the extraction of volatile compounds with supercritical carbon dioxide, and compounds obtained |
Dec. 17, 1991 |
| 5059327 |
Cross-linked separation membrane and process for pervaporation |
Oct. 22, 1991 |
| 4978430 |
Method for dehydration and concentration of aqueous solution containing organic compound |
Dec. 18, 1990 |
| 4964995 |
Supercritical separation process for complex organic mixtures |
Oct. 23, 1990 |
| 4898644 |
Removal of volatile acids from aqueous solutions |
Feb. 6, 1990 |
| 4883912 |
Process for the recovery of acetic acid |
Nov. 28, 1989 |
| 4770780 |
Liquid CO.sub.2 /cosolvent extraction |
Sep. 13, 1988 |
| 4729818 |
Dehydration of acetic acid by extractive distillation |
Mar. 8, 1988 |
| 4582570 |
Azeotropic dehydration distillation process |
Apr. 15, 1986 |
| 4576683 |
Method for separating carboxylic acids from mixtures with non-acids |
Mar. 18, 1986 |
| 4405717 |
Recovery of acetic acid from a fermentation broth |
Sep. 20, 1983 |
| 4401514 |
Method for the recovery of furfural, acetic acid and formic acid |
Aug. 30, 1983 |
| 4365080 |
Production of dimethyl esters |
Dec. 21, 1982 |
| 4353784 |
Method of recovery of acetic acid |
Oct. 12, 1982 |
| 4349415 |
Process for separating organic liquid solutes from their solvent mixtures |
Sep. 14, 1982 |
| 4230887 |
Recovery of anhydrous acids |
Oct. 28, 1980 |
| 4229261 |
Process for separating water from organic multiple component mixtures by distillation |
Oct. 21, 1980 |
| 4166774 |
Acrylic acid recovery and purification |
Sep. 4, 1979 |
| 4143066 |
Separation and recovery of carboxylic acids from water |
Mar. 6, 1979 |
| 4039395 |
Purification of acetic acid |
Aug. 2, 1977 |
| 4008131 |
Purification of acetic acid |
Feb. 15, 1977 |
| 3951755 |
Process for preparing technically pure acetic acid by extractive distillation |
Apr. 20, 1976 |
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