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Title: 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. Solvent mixtures formed of such a modified solvent with a desired co-solvent, preferably a low boiling hydrocarbon, 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:
; ; ; ;
Issue Date:
Research Org.:
Bioengineering Resources, Inc., Fayetteville, AR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174912
Patent Number(s):
6753170
Application Number:
10/053,195
Assignee:
Bioengineering Resources, Inc. (Fayetteville, AR)
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:  
FC02-90CE40939
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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., 2004. 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/1174912.
@article{osti_1174912,
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. Solvent mixtures formed of such a modified solvent with a desired co-solvent, preferably a low boiling hydrocarbon, 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 = {2004},
month = {6}
}

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Works referenced in this record:

Bioconversion of synthesis gas into liquid or gaseous fuels
journal, August 1992


The Biological production of ethanol from synthesis gas
journal, January 1989


Study of gaseous substrate fermentations: Carbon monoxide conversion to acetate. 2. Continuous culture
journal, September 1989


Biological production of liquid and gaseous fuels from synthesis gas
journal, March 1990