Continuous process for the preparation of solid catalyst components for the polymerization of -olefins

The present invention relates to a process for preparing a solid component of a high-yield catalyst for the polymerisation of -olefins. A process is provided for the preparation of a solid catalyst component for the polymerization of olefins, comprising continuously feeding a liquid containing a tit...

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Bibliographic Details
Main Authors Covezzi, Massimo, Fait, Anna, Di Benedetto, Almerinda
Format Patent
LanguageEnglish
Published 03.08.2004
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Summary:The present invention relates to a process for preparing a solid component of a high-yield catalyst for the polymerisation of -olefins. A process is provided for the preparation of a solid catalyst component for the polymerization of olefins, comprising continuously feeding a liquid containing a titanium compound having at least one titanium-halogen bond into a vessel containing a solid comprising a magnesium halide and continuously discharging liquid from the vessel, whereby the concentration of the solid is maintained within the range of between 80 and 300 g/l, and the product between the average residence time of the liquid in the vessel and the concentration of the solid is maintained below 10,000 min*g/l. An advantage of the process is the reduced time and reactor volume necessary to prepare the catalysts, which show good activity and stereospecificity.