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    • 2. 发明授权
    • Washing magnesium reducing agent prepared in absence of complexing
diluent
    • 在没有络合稀释剂的情况下制备洗涤镁还原剂
    • US4194076A
    • 1980-03-18
    • US900555
    • 1978-04-27
    • Richard E. DietzOscar D. Nowlin
    • Richard E. DietzOscar D. Nowlin
    • C08F4/64C08F10/00C08F4/02C08F10/02
    • C08F10/00Y10S526/906
    • An organic halide is reacted with magnesium metal in the absence of an ether or other complexing diluent, preferably in the absence of any extraneous diluent to produce a magnesium reducing agent. In one embodiment, the halide is added dropwise to the magnesium metal. The resulting magnesium reducing agent is then washed with an unreactive liquid hydrocarbon. An organoaluminum compound is mixed with the magnesium reducing agent either before or after the washing. The resulting cocatalyst produced by contacting the magnesium reducing agent with the organoaluminum compound is contacted with a titanium tetrahalide to give a catalyst. This catalyst is useful in the polymerization of 1-olefins and is of particular utility in the polymerization of ethylene at high productivity rates.
    • 在不存在醚或其它络合稀释剂的情况下,将有机卤化物与镁金属反应,优选在不存在任何外来稀释剂的情况下制备镁还原剂。 在一个实施方案中,将卤化物滴加到镁金属中。 然后将所得的镁还原剂用非反应性液体烃洗涤。 有机铝化合物在洗涤之前或之后与镁还原剂混合。 通过使镁还原剂与有机铝化合物接触而制得的助催化剂与四卤化钛接触,得到催化剂。 该催化剂可用于1-烯烃的聚合,并且在以高生产率聚合乙烯中特别有用。