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1. US20140249330 - Method for the production of an aqueous solution of salts

Office
United States of America
Application Number 14131855
Application Date 05.06.2012
Publication Number 20140249330
Publication Date 04.09.2014
Grant Number 09561999
Grant Date 07.02.2017
Publication Kind B2
IPC
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
C07C 51/14
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
51Preparation of carboxylic acids or their salts, halides, or anhydrides
10by reaction with carbon monoxide
14on a carbon-to-carbon unsaturated bond in organic compounds
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 209/68
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
209Preparation of compounds containing amino groups bound to a carbon skeleton
68from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
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
CPC
C07C 209/68
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
209Preparation of compounds containing amino groups bound to a carbon skeleton
68from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
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
Applicants Ekkehard Siebecke
UHDE INVENTA-FISCHER GMBH
Mirko Bär
Eberhard Raue
Inventors Ekkehard Siebecke
Mirko Bär
Eberhard Raue
Agents Leydig, Voit & Mayer, Ltd.
Priority Data 11005653 11.07.2011 EP
Title
(EN) Method for the production of an aqueous solution of salts
Abstract
(EN)

The invention relates to a method for the continuous production of a solution of salts, in particular for the production of hexamethylenediamine adipate and a device for implementing such a method. According to the invention, it is proposed to convert, in a first step, a substoichiometric quantity of alkane diamine in a ratio to the alkane dicarboxylic acid in water and, in a subsequent second step, to implement making-up with alkane diamine, adjustment of the stoichiometric ratios being effected via a pH value measurement at a constant temperature.