PROCESS FOR THE PREPARATION OF A CATALYST COMPONENT FOR THE POLYMERIZATION OF AN OLEFIN

摘要

The invention is directed to a process for the preparation of a catalyst component for the polymerisation of an olefin by: a) contacting metallic magnesium with an organic halide RX, where R is an organic group containing from 1 to 20 carbon atoms and X is a halide, whereupon the dissolved reaction product I is separated from the solid residual products and whereafter, b) an alkoxy group or aryloxy group-containing silane compound is added to the obtained reaction product I, whereupon the precipitate formed is purified to obtain reaction product II, c) which subsequently is contacted with TiCl4 as halogenized titanium compound and is purified to obtain a catalyst component, wherein, in step b the silane compound and reaction product I are introduced simultaneously to a device.