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1. WO2013135563 - PROCESS

Publication Number WO/2013/135563
Publication Date 19.09.2013
International Application No. PCT/EP2013/054645
International Filing Date 07.03.2013
IPC
C08F 6/00 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
6Post-polymerisation treatments
B01J 8/00 2006.1
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 19/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
C08F 2/01 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
01characterised by special features of the polymerisation apparatus used
C08F 2/06 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
04Polymerisation in solution
06Organic solvent
C08F 210/16 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
CPC
C07C 7/00
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification; Separation; Use of additives
C08F 10/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
C08F 10/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
02Ethene
C08F 2/001
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
001Multistage polymerisation processes characterised by a change in reactor conditions without deactivating the intermediate polymer
C08F 2/01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
01characterised by special features of the polymerisation apparatus used
C08F 2/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
04Polymerisation in solution
06Organic solvent
Applicants
  • INEOS EUROPE AG [CH]/[CH]
Inventors
  • MARISSAL, Daniel
  • VAN BREUSEGHEM, Philip
  • WALWORTH, Brent, R.
Agents
  • KING, Alex
Priority Data
12159940.116.03.2012EP
12159942.716.03.2012EP
12159944.316.03.2012EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS
(FR) PROCÉDÉ
Abstract
(EN)
The present invention relates to the treatment and recycle of effluent streams from a polymerisation process, and in particular provides a polymerisation process comprising the steps of: 1) Polymerising a monomer and a comonomer in a polymerisation reaction, 2) Withdrawing an effluent stream comprising solid polymer and a mixture comprising unreacted monomer and unreacted comonomer, and passing the effluent to a high pressure recovery system comprising a. a high pressure separation step for separating a vapour comprising unreacted monomer and unreacted comonomer from said solids, and b. a high pressure recycle system for recycling a portion of the vapour to the polymerisation reaction, 3) Passing the solids from the high pressure recovery system to a low pressure recovery system comprising a. a low pressure separation step for separating further unreacted monomer and unreacted comonomer from said solids, and b. a low pressure recycle system for recycling at least a portion of the unreacted monomer and unreacted comonomer to the polymerisation reaction, characterised in that a portion of the vapour separated in step 2(a) is passed to the low pressure recovery system.
(FR)
La présente invention concerne le traitement et le recyclage de flux d'effluent provenant d'un procédé de polymérisation, et en particulier un procédé de polymérisation comprenant les étapes consistant à : 1) polymériser un monomère et un comonomère dans une réaction de polymérisation, 2) retirer un flux d'effluent comprenant un polymère solide et un mélange comprenant un monomère inaltéré et un comonomère inaltéré, et à faire passer l'effluent à travers un système de récupération haute pression comprenant a. une étape de séparation haute pression pour séparer une vapeur comprenant un monomère inaltéré et un comonomère inaltéré des matières solides, et b. un système de recyclage haute pression pour recycler une partie de la vapeur pour la réaction de polymérisation, 3) faire passer les matières solides du système de récupération haute pression à travers le système de récupération basse pression comprenant a. une étape de séparation basse pression pour séparer un autre monomère inaltéré et un autre comonomère inaltéré des matières solides, et b. un système de recyclage basse pression pour le recyclage d'au moins une partie du monomère inaltéré et du comonomère inaltéré, pour la réaction de polymérisation, caractérisé en ce qu'une partie de la vapeur séparée dans l'étape 2 (a) est envoyée vers le système de récupération basse pression.
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