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1. WO1997046306 - METHOD FOR FILTERING A THREE-PHASED REACTION MIXTURE

Publication Number WO/1997/046306
Publication Date 11.12.1997
International Application No. PCT/FR1997/000937
International Filing Date 29.05.1997
Chapter 2 Demand Filed 29.12.1997
IPC
B01D 61/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
14Ultrafiltration; Microfiltration
B01J 8/00 2006.01
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
B01J 25/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
25Catalysts of the Raney type
04Regeneration or reactivation
B01J 37/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
B01J 38/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
38Regeneration or reactivation of catalysts, in general
C07C 253/34 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
253Preparation of carboxylic acid nitriles
32Separation; Purification; Stabilisation; Use of additives
34Separation; Purification
CPC
B01D 61/145
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
14Ultrafiltration; Microfiltration
145Ultrafiltration
B01J 25/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
25Catalysts of the Raney type
04Regeneration or reactivation
B01J 37/009
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
009Preparation by separation, e.g. by filtration, decantation, screening
B01J 38/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
38Regeneration or reactivation of catalysts, in general
B01J 8/006
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
005Separating solid material from the gas/liquid stream
006by filtration
C07C 253/34
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
253Preparation of carboxylic acid nitriles
32Separation; Purification; Stabilisation; Use of additives
34Separation; Purification
Applicants
  • RHODIA FIBER AND RESIN INTERMEDIATES [FR]/[FR] (AllExceptUS)
  • PERRONA, Philippe [FR]/[FR] (UsOnly)
  • SEVER, Lionel [FR]/[FR] (UsOnly)
Inventors
  • PERRONA, Philippe
  • SEVER, Lionel
Agents
  • VIGNALLY, Noël
Priority Data
96/0716904.06.1996FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR FILTERING A THREE-PHASED REACTION MIXTURE
(FR) PROCEDE DE FILTRATION D'UN MELANGE REACTIONNEL TRIPHASIQUE
Abstract
(EN)
The invention discloses a method for filtering a three-phased reaction mixture,comprising a liquid phase, an undissolved solid catalytic phase and a gas phase. More precisely it consists tangentially in filtering on one membrane filter at least one part of a three-phased reaction mixture comprising one liquid phase in which are found nitrile functions, one gas phase comprising hydrogen and one solid catalytic phase comprising nickel and/or Raney cobalt, or a supported metal catalyst, in recycling the catalyst while recuperating at least one part of the filtrate comprising the reaction products.
(FR)
La présente invention concerne un procédé de filtration d'un mélange réactionnel triphasique, comportant une phase liquide, une phase catalytique solide non dissoute et une phase gazeuse. Plus précisément elle consiste à filtrer tangentiellement sur un filtre à membrane au moins une partie d'un mélange réactionnel triphasique comportant une phase liquide dans laquelle se trouvent des fonctions nitrile, une phase gazeuse comprenant de l'hydrogène et une phase solide catalytique comprenant du nickel et/ou du cobalt de Raney, ou un catalyseur métallique supporté, à recycler le catalyseur tout en récupérant au moins une partie du filtrat contenant les produits de la réaction.
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