摘要:
Processes that, make nitrogen-containing compounds include converting succinic acid (SA) or monoammonium succinate (MAS) derived from a diammoniurn succinate (DAS)- or MAS-containing fermentation broth to produce such compounds Including diammobmane (DAB), succinic dinitrile (SDN), succinic amino nitrile (SAN), succinamide (DAM), and related polymers.
摘要:
A process for making a hydrogenated product comprising caprolactone (CLO) and 1,6-hexanediol (HDO) and derivatives thereof from adipic acid (AA) obtained from fermentation broths containing diammonium adipate (DAA) or monoammonium adipate (MAA).
摘要:
A process for making MAA from a clarified DAA-containing fermentation broth includes (a) distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes MAA, at least some DAA, and at least about 20 wt% water; (b) cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a DAA-containing liquid portion in contact with a MAA-containing solid portion that is substantially free of DAA; (c) separating the solid portion from the liquid portion; and (d) recovering the solid portion.
摘要:
Processes for making AA from either a clarified DAA-containing fermentation broth or a clarified MAA-containing fermentation broth that include distilling the broth under super atmospheric pressure at a temperature of >100°C to about 300°C to form an overhead that comprises water and ammonia, and a liquid bottoms that includes AA, and at least about 20 wt% water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion and a solid portion that is substantially pure AA; and separating the solid portion from the liquid portion. A method also reduces the broth distillation temperature and pressure by adding an ammonia separating and/or water azeotroping solvent to the broth.
摘要:
The present application provides genetically modified yeast cell comprising an active succinate fermentation pathway, as well as methods of using these cells to produce succinate.
摘要:
A process for making a NH 4 + OOC-R-COOH compound from a clarified NH 4 + OOC- R-COO' NH 4 + 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 NH 4 + OOC~R~COOH compound, at least some of a NH 4 + QOC-R-COO" NH 4 + compound, and at least about 20 wt% water; (b) cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a NH 4 + OOC-R~C00' NH 4 + compound-containing liquid portion in contact with a NH 4 + OOC-R-COOH compoond-containing solid portion that is substantially free of the NH 4 + OOC-R-COO" NH 4 + compound; (c) separating the solid portion from the liquid portion; and (d) recovering the solid portion.
摘要:
A composition for deicing or for the preparation of a heat transfer fluid is provided. The composition comprises a mixture of at least two carboxylic acid salts having a t/c ratio of 2 or lower, including a dicarboxylic salt and a monocarboxylic salt, said dicarboxylic salt being present in the mixture in an amount of at least 50 wt % of the weight of the mixture, on a dry basis. More particularly, said mixture is including a succinate and a formate, wherein the succinate is in an amount of at least 50 wt%, on a dry basis. Also provided is a method for deicing a surface or preventing the accumulation of ice, snow or a mixture thereof on a surface, comprising a step of applying on a surface covered by ice, snow or a mixture thereof, or susceptible of being covered by ice, snow or a mixture thereof, the above composition. The composition is also useful for the preparation of a heat transfer fluid coolant to be used in a heat transfer system comprising a heat transfer fluid provided with a cooling system.