摘要:
A process for making HOOC-R-COOH compound acid from a clarified NH 4 + - OOC- R-COO - NH 4 + 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.
摘要:
Processes for producing caprolactam (CL) and derivatives thereof from adipic acid (AA) obtained from fermentation broths containing diammonium adipate (DAA) or monoammonium adipate (MAA).
摘要:
Processes for making hydrogenated products including caprolactame (CL) caprolactone (CLO) or 1,6-hexanediol (HDO) and derivative thereof from monoammonium adipate (MAA) and/or adipic acid (AA) obtained from a clarified diammonium adipate-containing (DAA-containing) fermentation broth or monoammonium adipate-containing (MAA-containing) fermentation broth.
摘要:
Processes for making pyrrolidones include providing a clarified diammonium succinate (DAS)-containing and/or monoammonium succinate (MAS)-containing fermentation broth; distilling the broth under super atmospheric pressure at a temperature of greater than 100°C to about 300°C to form an overhead that includes water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt% water; cooling and/or evaporating the bottoms to attain a temperature and composition sufficient to cause the bottoms to separate into a liquid portion and a solid portion that is substantially pure SA; separating the solid portion from the liquid portion; and converting the solid SA portion to pyrrolidones.