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    • 12. 发明授权
    • Method for producing ethylene homo-and copolymers by intensively mixing a reactive reaction component with a mobile flow medium
    • 通过将反应性反应成分与流动介质强烈混合来生产乙烯均聚物和共聚物的方法
    • US06677408B1
    • 2004-01-13
    • US10009923
    • 2001-12-06
    • Frank-Olaf MählingAndreas DaissGeorg GroosAndreas Wölfert
    • Frank-Olaf MählingAndreas DaissGeorg GroosAndreas Wölfert
    • C08F206
    • B01J19/2415B01F5/0473B01F5/0614B01F5/0644B01F5/0646B01F5/0652B01F2215/0431B01J19/26C08F10/02C08F110/02C08F4/28C08F2/01C08F2/00C08F2500/12
    • The invention relates to a method for producing ethylene homo- and copolymers in a tubular reactor at pressures above 1000 bar and temperatures in the range from 120 to 350° C. by free-radical polymerization, in which firstly small amounts of free-radical chain initiators are added to a mobile flow medium comprising ethylene, molecular weight regulator and optionally polyethylene, and the polymerization is then carried out. In accordance with the invention, the mobile flow medium is firstly split into two volume elements flowing separately from one another, the volume elements flowing separately from one another are then set in rotation in opposite directions by means of suitable flow elements, the flowing volume elements rotating in opposite directions are then recombined to form a mobile flow medium, and then, at the moment of or shortly after the combining of the flowing volume elements rotating in opposite directions, the free-radical chain initiator is fed into the sheared interfacial region between the flowing volume elements rotating in opposite directions. The invention also relates to an apparatus for carrying out this method.
    • 本发明涉及一种通过自由基聚合在管状反应器中制备乙烯均聚物和共聚物的方法,其中压力高于1000巴,温度范围为120-350℃,其中首先将少量的自由基链 将引发剂加入到包含乙烯,分子量调节剂和任选的聚乙烯的流动介质中,然后进行聚合。 根据本发明,移动流媒体首先被分成彼此分开流动的两个体积元件,然后通过合适的流动元件将相互分开流动的体积元件以相反方向旋转,流动体积元件 然后在相反方向旋转以形成移动流动介质,然后在相反方向旋转的流动体积元件组合之后或不久之后,将自由基链引发剂进料到剪切界面区域之间, 流动体积元件以相反的方向旋转。 本发明还涉及一种用于执行该方法的装置。