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1. WO2002092549 - SYSTEME D'AGITATION POUR REACTEURS D'OXYDATION D'ALKYLBENZENE

Numéro de publication WO/2002/092549
Date de publication 21.11.2002
N° de la demande internationale PCT/US2002/013216
Date du dépôt international 24.04.2002
CIB
C07C 51/265 2006.01
CCHIMIE; MÉTALLURGIE
07CHIMIE ORGANIQUE
CCOMPOSÉS ACYCLIQUES OU CARBOCYCLIQUES
51Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides
16par oxydation
21avec l'oxygène moléculaire
255de composés contenant des cycles aromatiques à six chaînons sans ouverture du cycle
265comportant des chaînes latérales alkylées qui sont oxydées en groupes carboxyle
CPC
B01F 3/04531
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
3Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
04gases or vapours with liquids
04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
04531using driven stirrers with completely immersed stirring elements
B01F 7/00241
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
00008Stirrers, i.e. rotary stirring devices
00233Configuration of the rotating mixing element
00241Centrifugal stirrers, i.e. having a radial outflow or turbine-type, e.g. with means to guide the flow
B01F 7/0025
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
00008Stirrers, i.e. rotary stirring devices
00233Configuration of the rotating mixing element
0025with arms, paddles, vanes or blades
B01F 7/00341
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
00008Stirrers, i.e. rotary stirring devices
00233Configuration of the rotating mixing element
00341Propellers, i.e. stirrers having an axial outflow, e.g. of the ship or aircraft propeller type or having means on the propeller to guide the flow
B01F 7/00641
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
00008Stirrers, i.e. rotary stirring devices
00233Configuration of the rotating mixing element
00625Multistage systems, i.e. with a plurality of mixing elements mounted in sequence on the same axis
00641provided with a plurality of dissimilar elements
B01F 7/16
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
16with stirrers rotating about a substantially vertical axis
Déposants
  • INCA INTERNATIONAL S.P.A. [IT]/[IT] (AllExceptUS)
  • GNAGNETTI, Andrea [IT]/[IT] (UsOnly)
  • PIRAS, Luciano [IT]/[IT] (UsOnly)
  • KAR, Kishore [US]/[US] (UsOnly)
Inventeurs
  • GNAGNETTI, Andrea
  • PIRAS, Luciano
  • KAR, Kishore
Mandataires
  • HOPPE, James, T.
Données relatives à la priorité
60/291,06715.05.2001US
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) AGITATION SYSTEM FOR ALKYLBENZENE OXIDATION REACTORS
(FR) SYSTEME D'AGITATION POUR REACTEURS D'OXYDATION D'ALKYLBENZENE
Abrégé
(EN)
The present invention relates to a process for producing aromatic dicarboxylic acids by the oxidation of dimethylbenzenes wherein the dimethylbenzenes are mixed with an oxygen containing gas, solvent and catalyst in a reactor, the improvement comprising agitating the reaction mixture with one or more asymmetric radial impellers in combination with at least one axial impeller.
(FR)
L'invention se rapporte à un procédé d'obtention d'acides dicarboxyliques aromatiques par oxydation de diméthylbenzènes, lesquels sont mélangés à un gaz contenant de l'oxygène, un solvant et un catalyseur dans un réacteur. L'amélioration vient du fait que le mélange réactionnel est mélangé avec un ou plusieurs impulseurs radiaux asymétriques combinés à au moins un impulseur axial.
Également publié en tant que
CN02809977.X
GBGB0328038.5
IN1769/CHENP/2003
Dernières données bibliographiques dont dispose le Bureau international