PROCESSES FOR PRODUCING HOOC-R-COOH COMPOUND ACIDS FROM FERMENTATION BROTHS CONTAINING NH4+ -OOC-R-COO-NH4+ COMPOUNDS
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United States of America Patent
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N/A
Issued Date -
Jul 18, 2013
app pub date -
Apr 15, 2011
filing date -
Apr 30, 2010
priority date (Note) -
Abandoned
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Abstract
A process for making HOOC—R—COOH compound acid from a clarified NH4+−OOC—R—COO−NH4+ compound-containing fermentation broth including distilling the broth under super atmospheric pressure at a temperature of >I00° C. to about 250° C. to form an overhead that comprises water and ammonia, and a liquid bottoms that Includes HOOC—R—COOH compound acid, and at least about 20 wt %. water; cooling the. bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion in contact with a solid portion that is substantially pure HOOC—R—COOH compound acid; separating the solid portion from the liquid portion; and recovering the solid portion.
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