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1. EP2546227 - Method for producing an aqueous solution of salts

Office
European Patent Office
Application Number 11005653
Application Date 11.07.2011
Publication Number 2546227
Publication Date 16.01.2013
Publication Kind B1
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
B01J 8/20
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
18with fluidised particles
20with liquid as a fluidising medium
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
CPC
B01J 8/20
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
18with fluidised particles
20with liquid as a fluidising medium
B01J 2208/00592
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00592Controlling the pH
B01J 2208/00628
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00628Controlling the composition of the reactive mixture
B01J 2219/0004
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2219Chemical, physical or physico-chemical processes in general; Their relevant apparatus
00002Chemical plants
00027Process aspects
0004Processes in series
C07C 51/412
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
51Preparation of carboxylic acids or their salts, halides or anhydrides
41Preparation of salts of carboxylic acids
412by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
B01J 8/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
Applicants UHDE INVENTA FISCHER GMBH
Inventors SIEBECKE EKKEHARD
BÄR MIRKO
RAUE EBERHARD
Designated States
Priority Data 11005653 11.07.2011 EP
Title
(DE) Verfahren zur Herstellung einer wässrigen Lösung von Salzen
(EN) Method for producing an aqueous solution of salts
(FR) Procédé de fabrication d'une solution aqueuse de sels
Abstract
(DE)
Die Erfindung betrifft ein Verfahren zur kontinuierlichen Herstellung von Lösung von Salzen, insbesondere zur Herstellung von Hexamethylendiaminadipat und eine Vorrichtung zur Durchführung eines derartigen Verfahrens. Gemäß der Erfindung wird vorgeschlagen, in einem ersten Schritt eine unterstöchiometrische Menge von Alkandiamin im Verhältnis zur Alkandicarbonsäure im Wasser umzusetzen und in einem nachfolgenden zweiten Schritt eine Nachdosierung mit Alkandiamin durchzuführen, wobei die Einstellung der stöchiometrischen Verhältnisse über eine pH-Wertmessung bei konstanter Temperatur erfolgt.

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