PROCESSES FOR PRODUCING MONOAMMONIUM SUCCINATE FROM FERMENTATION BROTHS CONTAINING DIAMMONIUM SUCCINATE, MONOAMMONIUM SUCCINATE AND/OR SUCCINIC ACID, AND CONVERSION OF MONOAMMONIUM SUCCINATE TO SUCCINIC ACID

摘要

Processes for making monoammonium succinate (MAS) and/or succinic acid (SA)fromeither a clarified diammonium succinate (DAS)-containing fermentation broth ora clarifiedMAS-containing fermentation broth include (a) distilling the broth to form anoverhead thatincludes water and optionally ammonia and a liquid bottoms that includes MASor SA; (b)cooling and/or evaporating the bottoms and optionally adding an antisolvent tothe bottoms toattain a temperature and composition sufficient to cause the bottoms toproduce a solid portionthat contains MAS or SA in contact with a liquid portion; (c) separating thesolid portion fromthe liquid portion; and (d) recovering the solid portion.