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    • 3. 发明授权
    • Process of preparing a solid catalytic titanium component and process
for the polymerization of 1-alkenes using such a titanium component
    • 制备固体催化钛组分的方法和使用这种钛组分聚合1-烯烃的方法
    • US4546092A
    • 1985-10-08
    • US525825
    • 1983-08-23
    • Jacobus A. LoontjensBernardus J. Muskens
    • Jacobus A. LoontjensBernardus J. Muskens
    • C08F4/00C08F4/60C08F4/64C08F10/00
    • C08F10/00
    • A process is disclosed for preparing a titanium catalyst component useful for homopolymerizing 1-alkenes and for copolymerizing 1-alkenes with each other and/or with ethylene, consisting essentially in grinding a titanium halide compound/electron-donor complex with a magnesium aluminum halide obtained by precipitation from an organic solvent.In the process the ground product is first washed with a washing liquid containing a solvent for the aluminum halide/electron-donor complex which forms during the grinding process and by preference at least one alcohol, the molar ratio between alcohol and titanium in the ground product ranging between 50:1 and 1:20, and then the washed product is exposed to a liquid titanium halide compound.With this procedure, it is possible to obtain a titanium component which imparts to the polymerization catalyst an excellent stereospecificity along with a very high activity, and with which it is possible to obtain polymers, e.g. polypropylene, with a very low halogen content, a very low titanium content, and an excellent powder morphology and bulk density.
    • 公开了一种用于制备可用于均聚1-烯烃并用于使1-烯烃彼此和/或与乙烯共聚的钛催化剂组分的方法,其基本上在与卤化镁卤化铝的卤化铝化合物/电子给体络合物的研磨中得到 通过有机溶剂的沉淀。 在该方法中,研磨产物首先用包含在研磨过程中形成的卤化铝/电子给体络合物的溶剂的清洗液和优选至少一种醇洗涤,研磨产物中醇与钛的摩尔比 范围在50:1和1:20之间,然后将洗涤的产物暴露于液体卤化钛化合物。 通过该方法,可以获得赋予聚合催化剂的极好的立体定向性以及非常高的活性的钛成分,并且可以通过其获得聚合物。 聚丙烯,具有非常低的卤素含量,非常低的钛含量,以及优异的粉末形态和体积密度。