| 摘要 |
The present invention relates to a method for preparing a titanium catalyst component, comprising the steps: a) reacting a magnesium dihalide, an electron donor solvent and a titanium halide, b) reacting an alkyl borate ester with the reaction mixture obtained in step a), c) adding inorganic oxide particles to the reaction mixture obtained in step b), d) spray drying the suspension obtained in step c), a titanium catalyst component obtainable by said method, a method for preparing a titanium catalyst and a titanium catalyst obtainable by said method. |
