PROCESSES FOR PRODUCING NH4+ -OOC-R-COOH COMPOUNDS FROM FERMENTATION BROTHS CONTAINING NH4+ -OOC-R-COO- NH4+ COMPOUNDS AND/OR HOOC-R-COOH COMPOUND ACIDS, AND CONVERSION OF NH4+ -OOC -R-COOH COMPOUNDS TO HOOC-R-COOH COMPOUND ACIDS
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United States of America Patent
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Issued Date -
Jun 6, 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 a NH4+OOC—R—COOH compound from a clarified NH4+OOC—R—COO′NH4+ compound-containing fermentation broth includes (a) distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes a NH4+OOC˜R˜COOH compound, at least some of a NH4+QOC—R—COO″NH4+ compound, and at least about 20 wt % water; (b) cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a NH4+OOC—R˜C00′NH4+ compound-containing liquid portion in contact with a NH4+OOC—R—COOH compound-containing solid portion that is substantially free of the NH4+OOC—R—COO″NH4+ compound; (c) separating the solid portion from the liquid portion; and (d) recovering the solid portion.
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