| 摘要 |
The present invention relates to a process for the preparation of a catalyst of the Ziegler Natta type. According to this process a solid component, comprising basically atoms of halogen, magnesium and a transition metal of groups IV, V or VI of the Periodic Classification of the Elements, is contacted with an electron donor compound. The solid component is advantageously prepared by a reaction between metallic magnesium, a monohalogenated hydrocarbon and at least one compound of a transition metal.
|
