Method for vapor phase polymerization of olefins
    5.
    发明授权
    Method for vapor phase polymerization of olefins 失效
    烯烃气相聚合方法

    公开(公告)号:US4525548A

    公开(公告)日:1985-06-25

    申请号:US406435

    申请日:1982-08-09

    摘要: Provided is a method for vapor phase polymerization of olefins. An olefin gas is fed into a horizontal cylindrical vessel having a lower curved surface corresponding to 30 to 180 degrees of the circumference of the vessel and extending substantially the length of the vessel formed by a perforated plate having a multiplicity of holes spaced at intervals in the range of from 0.5 to 50 mm, through said plate from an olefin feed chamber mounted below and covering the plate. A polymer catalyst is fed into the horizontal cylindrical vessel through a polymerization catalyst inlet port located in a portion of the vessel other than the lower curved surface formed by the perforated plate. The olefin is reacted in the presence of a catalyst with agitation to form polymer. Unreacted olefin is removed through a discharge port located in a portion of the vessel other than the lower curved surface formed by the perforated plate. Polymer is removed through an outlet port located in a portion of the vessel other than the lower curved surface formed by the perforated plate.

    摘要翻译: 提供了一种烯烃气相聚合方法。 将烯烃气体进料到具有对应于容器圆周的30至180度的较低弯曲表面的水平圆柱形容器中,并且基本上延伸由多孔板形成的容器的长度,所述多孔板具有多个孔, 范围为0.5至50mm,通过所述板从安装在下方并覆盖板的烯烃进料室。 聚合物催化剂通过聚合催化剂入口进入水平圆筒形容器中,所述聚合催化剂入口位于容器的除多孔板形成的下弯曲表面之外的部分中。 烯烃在催化剂存在下与搅拌反应形成聚合物。 未反应的烯烃通过位于容器的除多孔板形成的下弯曲表面以外的排出口除去。 聚合物通过位于容器的除多孔板形成的下弯曲表面以外的一部分的出口除去。

    Method for vapor phase polymerization of alpha-olefin
    9.
    发明授权
    Method for vapor phase polymerization of alpha-olefin 失效
    α-烯烃气相聚合方法

    公开(公告)号:US5648581A

    公开(公告)日:1997-07-15

    申请号:US598334

    申请日:1996-02-08

    摘要: A method for polymerizing or copolymerizing .alpha.-olefin in a vapor phase condition by supplying to a reactor a catalyst composed of a solid catalyst component containing at least titanium and/or vanadium as well as magnesium and an organic aluminum compound wherein the current due to the electric charge transferred from polymer particles electrified to an electrode disposed at a position where sheet-like polymers will be produced in a reactor, as a result of contact of the polymer particles in the reactor with the electrode is determined, and the polymerization or copolymerization is carried out under such condition where the mean value of current is zero or a positive value. As a result, it becomes possible to prevent production of sheet-like polymers and to stably continue the reaction for polymerization.

    摘要翻译: 一种通过向反应器中提供由至少含有钛和/或钒的固体催化剂组分以及镁和有机铝化合物组成的催化剂,从而在气相条件下聚合或共聚α-烯烃的方法,其中由于 测定从聚合物粒子的电荷转移到布置在反应器中将产生片状聚合物的位置处的电极,由于反应器中的聚合物颗粒与电极的接触,聚合或共聚是 在电流的平均值为零或正值的条件下进行。 结果,可以防止片状聚合物的生产并稳定地继续聚合反应。