processo para obter um componente de catalisador sólido para a polimerização e a copolimerização de etileno, e, componente de catalisador sólido

processo para obter um componente de catalisador sólido para a polimerização e a copolimerização de etileno, e, componente de catalisador sólido

The present invention relates to process for obtaining a solid catalyst component for ethylene polymerization and copolymerization, wherein a carrier of particulate silica (65 to 85% by weight) is impregnated with a catalytically active portion (15 to 35% by weight) including titanium, magnesium, ch...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LEANDRO DOS SANTOS SILVEIRA, RICHARD FARACO AMORIM, ANTONIO LUIZ DUARTE BRAGANCA, MARCIA SILVA LACERDA MIRANDA
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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Beschreibung
Zusammenfassung:The present invention relates to process for obtaining a solid catalyst component for ethylene polymerization and copolymerization, wherein a carrier of particulate silica (65 to 85% by weight) is impregnated with a catalytically active portion (15 to 35% by weight) including titanium, magnesium, chlorine, alkoxy groups and at least one organometallic compound of the groups 1, 2, 12 or 13 of the periodic table. Further, the invention refers to the solid catalyst component thus obtained and to a process for ethylene polymerization and copolymerization wherein is used said catalyst. The catalyst obtained is suitable for the production of ethylene homo- and copolymers as narrow molecular weight distribution high density polyethylene (NMWDPE) and linear low density polyethylene (LLDPE) with controlled morphology and improved structure.