componente sólido de catalisador para a (co)polimerização de alfa-olefinas, processo para a preparação de um componente sólido de catalisador para a (co)polimerização de alfa-olefinas, componente sólido de catalisador, catalisador para (co)polimerização de alfa-olefinas, e, processo para a (co)polimerização de alfa-olefinas

componente sólido de catalisador para a (co)polimerização de alfa-olefinas, processo para a preparação de um componente sólido de catalisador para a (co)polimerização de alfa-olefinas, componente sólido de catalisador, catalisador para (co)polimerização de alfa-olefinas, e, processo para a (co)polimerização de alfa-olefinas

Bimetal catalyst for the (co)polymerization of alpha-olefins comprising a co-catalyst consisting of a hydride or an organometallic compound of an element of groups 1, 2 or 13 of the periodic table, and a solid component consisting of at least 95% by weight of titanium, magnesium, hafnium, aluminum,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANGELO MOALLI, ALBERTO ZANELLATO, FRANCESCO MENCONI, GIUSEPPE CONTI
Format: Patent
Sprache:por
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:Bimetal catalyst for the (co)polymerization of alpha-olefins comprising a co-catalyst consisting of a hydride or an organometallic compound of an element of groups 1, 2 or 13 of the periodic table, and a solid component consisting of at least 95% by weight of titanium, magnesium, hafnium, aluminum, chlorine and R-COO carboxylate groups, wherein R is an aliphatic, cycloaliphatic or aromatic hydrocarbon, containing from 1 to 30 carbon atoms, wherein at least 80% of the titanium is in oxidation state +3, and at least 1% of said titanium in oxidation state +3 has a tetrahedral coordination geometry. Said catalyst allows the production of olefinic polymers, particular polyethylene, with a high molecular weight by means of solution polymerization processes at temperatures exceeding 200° C.