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    • 91. 发明授权
    • Supported vanadium dihalide-ether complex catalyst
    • 负载型二卤化钒 - 醚络合物催化剂
    • US4559318A
    • 1985-12-17
    • US682726
    • 1984-12-17
    • Paul D. SmithJoel L. Martin
    • Paul D. SmithJoel L. Martin
    • C08F4/68C08F10/00
    • C08F10/00
    • A vanadium dichloride-ether complex is carried on a porous support. This complex can be produced by either forming VCl.sub.2 and thereafter complexing the material with an ether or forming an ether complex with VCl.sub.4 or VCl.sub.3 and thereafter reducing the vanadium compound to VCl.sub.2. It is also possible to carry out the complexing reaction and the reduction essentially simultaneously. The resulting catalyst in combination with a cocatalyst is capable of giving high activity in olefin polymerization and demonstrates good sensitivity to molecular weight control agents, thus allowing the production of a broad spectrum of polymers so far as molecular weight is concerned.
    • 二氯化二苯醚复合物载于多孔载体上。 该络合物可以通过形成VCl 2并随后用醚络合材料或与VCl 4或VCl 3形成醚络合物,然后将钒化合物还原成VCl 2来制备。 也可以基本上同时进行络合反应和还原。 所得催化剂与助催化剂组合能够在烯烃聚合中产生高活性,并且对分子量控制剂具有良好的敏感性,从而允许在分子量方面生产广谱聚合物。