Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth
Abstract
A modified water-immiscible solvent useful in the extraction of acetic acid from aqueous streams is a substantially pure mixture of isomers of highly branched di-alkyl amines. This solvent is substantially devoid of mono-alkyl amines and alcohols. Solvent mixtures formed of such a modified solvent with a desired cosolvent, preferably a low boiling hydrocarbon which forms an azeotrope with water are useful in the extraction of acetic acid from aqueous gaseous streams. An anaerobic microbial fermentation process for the production of acetic acid employs such solvents, under conditions which limit amide formation by the solvent and thus increase the efficiency of acetic acid recovery. Methods for the direct extraction of acetic acid and the extractive fermentation of acetic acid also employ the modified solvents and increase efficiency of acetic acid production. Such increases in efficiency are also obtained where the energy source for the microbial fermentation contains carbon dioxide and the method includes a carbon dioxide stripping step prior to extraction of acetic acid in solvent.
- Inventors:
-
- Fayetteville, AR
- Corpus Christi, TX
- Issue Date:
- Research Org.:
- Membrane Technology and Research, Inc., Menlo Park, CA (United States)
- OSTI Identifier:
- 874335
- Patent Number(s):
- 6368819
- Assignee:
- Bioengineering Resources, Inc. (Fayetteville, AR); Celanese International Corporation (Dallas, TX)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {
- DOE Contract Number:
- FC02-90CE40903
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- microbial; process; preparation; acetic; acid; solvent; extraction; fermentation; broth; modified; water-immiscible; useful; aqueous; streams; substantially; pure; mixture; isomers; highly; branched; di-alkyl; amines; devoid; mono-alkyl; alcohols; mixtures; formed; cosolvent; boiling; hydrocarbon; forms; azeotrope; water; gaseous; anaerobic; production; employs; solvents; conditions; limit; amide; formation; increase; efficiency; recovery; methods; direct; extractive; employ; increases; obtained; energy; source; contains; carbon; dioxide; method; stripping; step; prior; carbon dioxide; energy source; solvent mixture; aqueous stream; /435/
Citation Formats
Gaddy, James L, Clausen, Edgar C, Ko, Ching-Whan, Wade, Leslie E, and Wikstrom, Carl V. Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth. United States: N. p., 2002.
Web.
Gaddy, James L, Clausen, Edgar C, Ko, Ching-Whan, Wade, Leslie E, & Wikstrom, Carl V. Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth. United States.
Gaddy, James L, Clausen, Edgar C, Ko, Ching-Whan, Wade, Leslie E, and Wikstrom, Carl V. Tue .
"Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth". United States. https://www.osti.gov/servlets/purl/874335.
@article{osti_874335,
title = {Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth},
author = {Gaddy, James L and Clausen, Edgar C and Ko, Ching-Whan and Wade, Leslie E and Wikstrom, Carl V},
abstractNote = {A modified water-immiscible solvent useful in the extraction of acetic acid from aqueous streams is a substantially pure mixture of isomers of highly branched di-alkyl amines. This solvent is substantially devoid of mono-alkyl amines and alcohols. Solvent mixtures formed of such a modified solvent with a desired cosolvent, preferably a low boiling hydrocarbon which forms an azeotrope with water are useful in the extraction of acetic acid from aqueous gaseous streams. An anaerobic microbial fermentation process for the production of acetic acid employs such solvents, under conditions which limit amide formation by the solvent and thus increase the efficiency of acetic acid recovery. Methods for the direct extraction of acetic acid and the extractive fermentation of acetic acid also employ the modified solvents and increase efficiency of acetic acid production. Such increases in efficiency are also obtained where the energy source for the microbial fermentation contains carbon dioxide and the method includes a carbon dioxide stripping step prior to extraction of acetic acid in solvent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
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