2226-88-2Relevant articles and documents
Preparation method of organic metal salt additive (by machine translation)
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Paragraph 0013; 0025; 0029, (2020/06/02)
The organic metal salt additive, prepared by mixing :(1), washing, with short-chain organic acid as acid source, and then mixing, with the resulting solution of Step ;(2) to obtain the high-purity organic metal salt additive, has the advantages (1) as follows, The organic metal salt additive is relatively high in crystal form structure and high in purity, and has good industrial application prospects, through mixing, of an iron source or a calcium source, or a, zinc source with a high-purity, organic metal salt additive agent in an aqueous solution with, a wide,price. product source. (by machine translation)
PROCESSES FOR PRODUCING CARBOXYLIC ACIDS FROM FERMANTATION BROTHS CONTAINING THEIR AMMONIUM SALTS
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Paragraph 0065-0068, (2013/03/28)
Process for the preparation of carboxylic acids like succinic acid (SA) from their correponding biologically-produced ammonium salts (like DAS) and / or amides and / or imides. The process involves reacting the biologically-produced derivatives at high temperature, removing ammonia and water, crystallizing the carboxylic acid obtained and recycling the mother liquor to the reaction system.
PROCESSES FOR PRODUCING BUTANEDIOL AND DIAMINOBUTANE FROM FERMENTATION BROTHS CONTAINING AMMONIUM SUCCINATES
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Page/Page column 14-16, (2012/12/13)
Processes include providing a clarified diammonium succinate (DAS)- or monoammonium succinate (MAS)- containing fermentation broth; distilling the broth of an overhead that includes water and ammonia, and a liquid bottoms that includes SA, 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 SA; separating the solid portion from the liquid portion; and converting the solid portion to produce nitrogen containing compounds such as diamine butane (DAB), succinic dinitrile (SDN), succinic amino nitrile (SAN) or succinamide (DAM) and downstream products.