PROCESS FOR A GAS PHASE OLEFIN POLYMERIZATION

THE PRESENT INVENTION RELATES TO A PROCESS FOR INTRODUCING A SOLID CATALYST INTO A GAS-PHASE OLEFIN POLYMERIZATION REACTOR. IT COMPRISES IN PARTICULAR STORING THE CATALYST IN THE FORM OF A DRY POWDER IN A HOPPER, WITHDRAWING FROM THE HOPPER A MEASURED AMOUNT OF THE SAID CATALYST, INTRODUCING THE SAI...

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Bibliographische Detailangaben
1. Verfasser:	MORTEROL FREDERIC ROBERT MARIE MICHEL
Format:	Patent
Sprache:	eng
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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Zusammenfassung:	THE PRESENT INVENTION RELATES TO A PROCESS FOR INTRODUCING A SOLID CATALYST INTO A GAS-PHASE OLEFIN POLYMERIZATION REACTOR. IT COMPRISES IN PARTICULAR STORING THE CATALYST IN THE FORM OF A DRY POWDER IN A HOPPER, WITHDRAWING FROM THE HOPPER A MEASURED AMOUNT OF THE SAID CATALYST, INTRODUCING THE SAID AMOUNT OF THE CATALYST AND A LIQUID HYDROCARBON INTO A MIXING CHAMBER, MIXING THE SAID CATALYST WITH THE SAID LIQUID HYDROCARBON SO AS TO FORM IN THE SAID CHAMBER A SUSPENSION OF THE ENTRAINED CATALYST WITH THE SAID LIQUID HYDROCARBON, AND INTRODUCING THE SAID SUSPENSION INTO THE SAID REACTOR. IN A PREFERRED FORM, THE LIQUID HYDROCARBON IS CONTINUOUSLY INTRODUCED INTO THE CHAMBER AND FORMS A CONTINUOUS STREAM TO WHICH IS ADDED THE MEASURED AMOUNT OF THE CATALYST AND WHICH FLOWS INTO THE REACTOR.(FIG. 7)