METHOD OF PREPARING CATALYST AND ETHYLENE POLYMERIZATION PROCESS USING THEREOF

FIELD: polymerization processes and catalysts. ^ SUBSTANCE: invention relates to preparing supported titanium-magnesium catalyst for production of polyethylene and superhigh-molecular weight polyethylene via suspension polymerization of ethylene in hydrocarbon solvent. Invention provides a method fo...

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Hauptverfasser:	KIL'DJASHEV SERGEJ PETROVICH, MIKENAS TAT'JANA BORISOVNA, ZAKHAROV VLADIMIR ALEKSANDROVICH, NIKITIN VALENTIN EVGEN'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS BASED THEREON GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: polymerization processes and catalysts. ^ SUBSTANCE: invention relates to preparing supported titanium-magnesium catalyst for production of polyethylene and superhigh-molecular weight polyethylene via suspension polymerization of ethylene in hydrocarbon solvent. Invention provides a method for preparing supported ethylene polymerization catalyst containing titanium compound on magnesium-containing support, which is prepared by interaction of dissolved organomagnesium compound having following composition: MgPh2.nMgCl2.mR2O, wherein R represents butyl or isoamyl, n=0.37-0.7, and m=1-2, with compounds inducing conversion of organomagnesium compound into solid magnesium-containing support. As such compounds, there is used a composition including product of reaction of alkylsilane R'kSi4-k, wherein R is alkyl or phenyl and k=1, 2, with silicon tetraalkoxide Si(OEt)4 at molar ratio 2-4, respectively, and a dialkylaromatic ether. Catalyst is characterized by high activity at temperatures