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1. IN11281/DELNP/2013 - METHOD FOR PRODUCING AN AQUEOUS SOLUTION OF SALTS

Office
India
Application Number 11281/DELNP/2013
Application Date 30.12.2013
Publication Number 11281/DELNP/2013
Publication Date 02.01.2015
Publication Kind A
IPC
C07C 51/41
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
51Preparation of carboxylic acids or their salts, halides, or anhydrides
41Preparation of salts of carboxylic acids by conversion of the acids or their salts into salts with the same carboxylic acid part
C07C 55/02
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
55Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms
02Dicarboxylic acids
C07C 55/14
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
55Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms
02Dicarboxylic acids
14Adipic acid
Applicants UHDE INVENTA FISCHER GMBH
Inventors SIEBECKE Ekkehard
BÄR Mirko
RAUE Eberhard
Priority Data 11005653 11.07.2011 EP
Title
(EN) METHOD FOR PRODUCING AN AQUEOUS SOLUTION OF SALTS
Abstract
(EN)
The invention relates to a method for continuously producing a solution of salts in particular for producing hexamethylenediamine adipate and to a device for carrying out such a method. According to the invention in a first step a substoichiometric quantity of alkane diamine in relation to the alkane dicarboxylic acid is reacted in water and in a subsequent second step an additional metered amount of alkane diamine is added wherein the stoichiometric relationships are adjusted by means of a pH value measurement at a constant temperature.