AN APPARATUS FOR THE PRODUCTION OF POLYETHYLENE AND ETHYLENE COPOLYMERS

The invention provides an apparatus and a process for the high pressure polymerization of ethylene, optionally with one or more comonomers, in which unreacted monomer is separated from the polymer in a separation system having at least first, second and third separation vessels and in which off gas...

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Hauptverfasser:	CLAESSENS, Roger, VAES, Geert, VAN NULAND, Tom, LAMMENS, Henri, A
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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creator	CLAESSENS, Roger VAES, Geert VAN NULAND, Tom LAMMENS, Henri, A
description	The invention provides an apparatus and a process for the high pressure polymerization of ethylene, optionally with one or more comonomers, in which unreacted monomer is separated from the polymer in a separation system having at least first, second and third separation vessels and in which off gas from the second vessel is recombined back into the product mixture upstream of the first separation vessel, preferably using a jet pump.
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subjects	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
title	AN APPARATUS FOR THE PRODUCTION OF POLYETHYLENE AND ETHYLENE COPOLYMERS
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