[EN] OLEFIN POLYMERIZATION CATALYST COMPONENT WITH AUXILIARY INTERNAL ELECTRON DONOR<br/>[FR] CONSTITUANT CATALYTIQUE DE POLYMÉRISATION D'OLÉFINES AVEC DONNEUR D'ÉLECTRONS INTERNE AUXILIAIRE
申请人:BASF CORP
公开号:WO2016168108A1
公开(公告)日:2016-10-20
A process for preparing a solid catalyst component for use in olefinic polymerization, the process including contacting in a first solvent, a solid magnesium compound, and a first titanium compound to form a solid component and liquid component; contacting the solid component with an internal electron donor and an auxiliary internal electron donor; contacting the solid component with a second titanium compound in second solvent to form the solid catalyst component; and washing the solid catalyst component with hydrocarbon or chlorinated hydrocarbon solvent with or without a titanium compound; wherein: the solid magnesium compound is at least one of a magnesium halide, a magnesium alkoxide, a magnesium halide complex with an alcohol, a magnesium alkoxide complex with an alcohol; the auxiliary internal electron donor is an acyl halide; and the internal electron donor is a ester, an ether, a ketone, or a combination of any two or more thereof.