[EN] PROCESSES FOR PRODUCING MONOAMMONIUM ADIPATE FROM FERMENTATION BROTHS CONTAINING DIAMMONIUM ADIPATE, MONOAMMONIUM ADIPATE AND/OR ADIPIC ACID, AND CONVERSION OF MONOAMMONIUM ADIPATE TO ADIPIC ACID<br/>[FR] PROCÉDÉS DE FABRICATION D'ADIPATE DE MONOAMMONIUM À PARTIR DE BOUILLONS DE FERMENTATION CONTENANT DE L'ADIPATE DE DIAMMONIUM, UN ADIPATE DE MONOAMMONIUM ET/OU DE L'ACIDE ADIPIQUE, ET DE CONVERSION DE L'ADIPATE DE MONOAMMONIUM EN ACIDE ADIPIQUE
申请人:BIOAMBER SAS
公开号:WO2011136941A1
公开(公告)日:2011-11-03
A process for making MAA from a clarified DAA-containmg fefme.ntation broth includes (a) distilling: the broth to form an overhead thai includes water and ammonia, and a liquid bottoms, that includes MAA, at least some DAA, and at least about 20 wt% water; (fa) cooling "the bottoms to a temperature sufficient to cause the bottoms to separate into a DAA-containing liquid portion in contact with a MAA-contaraing solid portion that is substantially free of DAA; (c) separating the solid portion from the liquid portion: and (d) recovering the solid portion.
Processes for producing monoammonium adipate from fermentation broths containing diammonium adipate, monoammonium adipate and/or adipic acid, and conversion of monoammonium adipate to adipic acid
申请人:BioAmber S.A.S.
公开号:EP2383250A1
公开(公告)日:2011-11-02
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.
The present invention is a method for producing an aromatic compound by substituting the sulfonic acid group in a sulfonic acid aromatic-ester with a hydrogen atom in the presence of a platinum group metal catalyst, wherein an alkali metal carboxylate and/or an ammonium formate are made to coexist in the system. According to the present invention, an aromatic compound where the sulfonic acid group in a sulfonic acid aromatic-ester is substituted with a hydrogen atom, can be produced efficiently with good operability without using metal magnesium.
This disclosure provides for new catalyst systems and new methods for preparing and using the catalyst systems for generating a trimerization product. In an aspect, the new catalyst systems comprise a chromium carboxylate that is prepared by anhydrous metathesis. In another aspect, the catalyst system comprise a chromium carboxylate that is prepared by anhydrous metathesis and a metal pyrrolide compound. The catalyst systems imparts improved performance and/or reduced catalyst system cost to an olefin trimerization process.
This disclosure provides a process for making transition metal carboxylate compositions by combining in an polar aprotic first solvent a transition metal precursor and a Group 1 or Group 2 metal carboxylate under substantially acid-free and substantially anhydrous conditions, to generate a mixture comprising the transition metal carboxylate composition. Optionally, the transition metal carboxylate composition can be purified, for example, by substantially removing the first solvent provide a residue comprising the transition metal carboxylate composition, and also optionally, further by extracting the transition metal carboxylate composition from the residue with a non-coordinating second solvent to provide an extract comprising the transition metal carboxylate composition.