Recovery of organic acids

Verser, Dan W; Eggeman, Timothy J

Recovery of organic acids

Patent · 13 October 2009

OSTI ID:1001793

Verser, Dan W ^[1]; Eggeman, Timothy J ^[2]

Golden, CO
Lakewood, CO

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.

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Research Organization:: ZeaChem, Inc. (Golden, CO)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG36-03GO13010

Assignee:: ZeaChem, Inc. (Golden, CO)

Patent Number(s):: 7,601,865

Application Number:: 11/046,206

OSTI ID:: 1001793

Country of Publication:: United States

Language:: English

References (32)

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