Process for the recovery of organic acids
AssigneeArcher Daniels Midland Company
InventorsKevin M. Moore, Alexandra J. Sanborn
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Abstract
The present invention relates to a process for the recovery of an organic acid from a fermentation broth which comprises drying the fermentation broth to obtain a dried product, adding the dried product to a lower alcohol in the presence of an acid, and then removing the insoluble material to obtain an organic acid. In accordance with the recovery process of the present invention, organic acids of a high purity can be recovered in high yields from the whole fermentation solution containing various impurities with fewer steps as compared with conventional methods.
Claims45
A process for the recovery of an organic acid from a fermentation broth comprising:
- (a) drying said fermentation broth to obtain a dried product;
- (b) adding said dried product (a) to a lower alcohol in the presence of an acid;
- and
- (c) removing insolubles to obtain an organic acid.
A process for the recovery of an organic acid from a fermentation broth comprising:
- (a) drying said fermentation broth to obtain a dried product;
- (b) adding said dried product (a) to a lower alcohol to obtain an alcoholic suspension;
- (c) adding an acid to said alcoholic suspension (b);
- and
- (d) removing the insolubles to obtain an organic acid.
A process for the recovery of an organic acid ester from a fermentation broth comprising:
- (a) drying said fermentation broth to obtain a dried product;
- (b) adding said dried product (a) to a lower alcohol in the presence of an acid;
- (c) esterifying the free organic acid to the corresponding ester;
- and
- (d) removing insolubles to obtain an organic acid ester.
Dependencies are inferred from the claim text.