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Title: Recovery of organic acids

Patent ·
OSTI ID:1033932

A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. A tertiary amine and CO.sub.2 are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and an amine. A water immiscible solvent, such as an alcohol, is added to extract the acid/amine complex from the dilute salt solution to a reaction phase. The reaction phase is continuously dried and a product between the acid and the solvent, such as an ester, is formed.

Research Organization:
ZeaChem, Inc. (Golden, CO)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG36-03GO13010
Assignee:
ZeaChem, Inc. (Golden, CO)
Patent Number(s):
8,048,655
Application Number:
12/548,312
OSTI ID:
1033932
Country of Publication:
United States
Language:
English

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