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    • 8. 发明公开
    • 폴리에틸렌의 제조방법
    • 制备聚乙烯的方法
    • KR1020070099270A
    • 2007-10-09
    • KR1020060030504
    • 2006-04-04
    • 주식회사 엘지화학
    • 권혁주황산악안동환정성애
    • C08F10/02C08F4/00C08F110/02
    • C08F210/16C08F2/04C08F2/34
    • A method for preparing polyethylene is provided to improve mechanical properties and processing characteristics of polyethylene. A method for preparing polyethylene is carried out by using three reactors connected in serial and in parallel in the presence of a catalyst system comprising an ethylene polymerization catalyst and a co-catalyst and hydrogen, and comprises the steps of carrying out the ethylene polymerization at a first reactor and a second reactor independently to prepare ethylene polymers with different molecular weight distribution and density, and discharging them; and injecting the discharged ethylene polymer into the third reactor connected with the first and second reactors and polymerizing further it in the presence of added ethylene.
    • 提供一种制备聚乙烯的方法,以改善聚乙烯的机械性能和加工特性。 一种制备聚乙烯的方法是通过在包含乙烯聚合催化剂和助催化剂和氢气的催化剂体系的存在下,使用三个连续并联的反应器进行的,包括以下步骤: 第一反应器和第二反应器独立地制备具有不同分子量分布和密度的乙烯聚合物,并将其排出; 并将排出的乙烯聚合物注入与第一和第二反应器连接的第三反应器中,并在加入的乙烯的存在下进一步聚合。