公开(公告)号：US20180118632A1

公开(公告)日：2018-05-03

申请号：US15572839

申请日：2016-04-19

Applicant: BASF SE

Inventor： Benjamin NEHLS ,  Markus KLUMPE ,  Michael MAUSS ,  Klaus ECKERT

IPC: C05D9/02 ,  C11D3/33 ,  C11D3/43 ,  C05D9/00 ,  C05G3/00

CPC classification number: C05D9/02 ,  C05D9/00 ,  C05G3/0076 ,  C05G3/0082 ,  C11D3/33 ,  C11D3/43

Abstract: Process for manufacturing a formulation of a chelating agent according to general formula (I): R1—CH(COOX1)—N(CH2COOX1)2, wherein R1 is selected from C1-C4-alkyl, linear or branched, phenyl, benzyl, CH2OH, and CH2CH2COOX1, X1 is (MxH1-x), M being selected from alkali metal, x is in the range of from 0.6 to 1, said formulation comprising in the range of from 0.01 to 20% by weight of water, and at least one organic solvent selected from alkanols with a boiling point at normal pressure that is higher than the boiling point of water, from alkandiols, alkantriols and polyols and mixtures of at least two of the foregoing, said process comprising the following steps: (a) providing an aqueous solution of chelating agent according to general formula (I), (b) adding said organic solvent and (c) removing the water completely or the majority of the water by distillation.

公开(公告)号：US20160251384A1

公开(公告)日：2016-09-01

申请号：US15148430

申请日：2016-05-06

Applicant: BASF SE

Inventor： OLIVER HUTTENLOCH ,  Patrick DECK ,  Holger GANZ ,  Michael MAUSS ,  Wolfgang KÖRNIG ,  Martin BOCK

IPC: C07F9/22

CPC classification number: C07F9/224 ,  C07B63/00

Abstract: A process for the removal of acids from reaction mixtures, comprising at least one product of value which is sparingly soluble in water, by at least one unpolar amine as an auxiliary base, which includes: a) reacting the auxiliary base with the acid with formation of a salt; b) reacting the salt formed in step a) with a further base which accepts the acid with liberation of the auxiliary base and combines with the acid to be accepted from the auxiliary base to form a salt which is very readily soluble in water; c) extraction of the mixture obtained in step b) with water or an aqueous medium, wherein the salt of the further base dissolves in the aqueous phase and the product of value, or the solution of the product of value, in a suitable solvent and the auxiliary base form at least one separate nonaqueous phase; and d) removal by distillation of at least part of any solvent present from the at least one nonaqueous phase obtained in step c), to form two nonmiscible liquid phases.

Abstract translation: 通过至少一种非极性胺作为辅助碱从反应混合物中除去酸的方法，该方法包括至少一种值得微溶于水的产物，其包括：a）使辅助碱与酸形成反应 的盐 b）使步骤a）中形成的盐与另外的碱反应，其另外的碱可以通过辅助碱的释放与酸接触，并与待辅助的酸结合，形成非常容易溶于水的盐; c）用水或水性介质萃取步骤b）中得到的混合物，其中另外碱的盐溶解在水相中，并且将有价值的产物或产品的溶液在合适的溶剂中溶解， 辅助碱形成至少一个单独的非水相; 和d）通过蒸馏除去存在于步骤c）中获得的至少一种非水相中的任何溶剂的至少一部分，以形成两个不可混溶的液相。