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    • 21. 发明授权
    • Olefin polymerization catalyst
    • 烯烃聚合催化剂
    • US4525468A
    • 1985-06-25
    • US489687
    • 1983-04-28
    • Mark P. MackMark L. Shannon
    • Mark P. MackMark L. Shannon
    • C08F4/64C08F10/00
    • C08F10/00
    • High activity catalysts for the polymerization of ethylene and other .alpha.-olefins are made by contacting a soluble magnesium compound of the general formula Mg(OSiR.sup.1 R.sup.2 R.sup.3).sub.2, wherein each of R.sup.1, R.sup.2, and R.sup.3 is, independently, alkyl, alkoxy or aryl with a metal alkoxide, or a mixture of a titanium tetraalkoxide with an alkoxide of another transition metal, in a saturated aliphatic hydrocarbon solution, followed by chlorination and precipitation by a suitable chlorinating agent. These catalysts show high activity for the polymerization of ethylene, especially under slurry polymerization conditions.
    • 通过使通式Mg(OSiR1R2R3)2的可溶性镁化合物与其中R1,R2和R3各自独立地为烷基,烷氧基或芳基与通式Mg(OSiR 2 R 3)2的可溶性镁化合物接触而制备用于乙烯和其它α-烯烃聚合的高活性催化剂, 金属醇盐或四烷氧基钛与另一过渡金属的醇盐的混合物,在饱和脂族烃溶液中,然后氯化并通过合适的氯化剂沉淀。 这些催化剂对于乙烯的聚合显示出高的活性,特别是在淤浆聚合条件下。
    • 22. 发明授权
    • Supported catalyst for olefin polymerization
    • 用于烯烃聚合的负载催化剂
    • US4371455A
    • 1983-02-01
    • US332417
    • 1981-12-21
    • Mark P. MackCharles T. Berge
    • Mark P. MackCharles T. Berge
    • C08F10/00C08F4/02C08F4/64
    • C08F10/00
    • A method for the preparation of supported Ziegler-Natta catalysts comprising the reduction of a transition metal compound with a magnesium containing reducing agent. The reducing agent is prepared in the presence of a magnesium chloride support utilizing an anhydrous and oxygen-free mixture of magnesium halide and magnesium metal, slurried in a hydrocarbon solvent. A halogenated hydrocarbon is added to activate the magnesium-containing reducing agent. Thereafter the transition metal compound is mixed with the slurry. The resulting solid is washed with a hydrocarbon solvent to eliminate residual transition metal compounds. The resulting washed solid is an active supported Ziegler-Natta olefin polymerization catalyst.
    • 一种制备负载齐格勒 - 纳塔催化剂的方法,包括用含镁还原剂还原过渡金属化合物。 在氯化镁载体的存在下,使用卤化镁和镁的金属的无水和无氧混合物在烃溶剂中成浆形成还原剂。 加入卤代烃以活化含镁还原剂。 然后将过渡金属化合物与浆料混合。 所得固体用烃溶剂洗涤以除去残留的过渡金属化合物。 所得洗涤的固体是活性负载齐格勒 - 纳塔烯烃聚合催化剂。