POLYMERIZATION OF OLEFINS
    24.
    发明专利

    公开(公告)号:CA1135247A

    公开(公告)日:1982-11-09

    申请号:CA343703

    申请日:1980-01-15

    Inventor: DIETZ RICHARD E

    Abstract: 27831 A process for polymerizing alpha-olefins in the presence of a catalyst comprising two components. Component A is obtained by mixing a milled mixture of magnesium and particulate inorganic solid with an alcohol and then contacting the resultant product with a tetravalent halogenated titanium compound. Component B comprises a metallic hydride or an organometallic compound, e.g., an organoaluminum compound.

    WASHING MAGNESIUM REDUCING AGENT PREPARED IN ABSENCE OF COMPLEXING DILUENT

    公开(公告)号:CA1096363A

    公开(公告)日:1981-02-24

    申请号:CA271167

    申请日:1977-02-07

    Abstract: An organic halide is added dropwise to magnesium metal in the absence of an ether or other complexing diluent, preferably in the absence of any extraneous diluent produce a magnesium reducing agent. 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.

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