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    • 6. 发明公开
    • Method for drying vapor phase reaction system
    • Verfahren zum Trocknen eines Dampfphasnreaktions系统。
    • EP0604994A1
    • 1994-07-06
    • EP93121043.9
    • 1993-12-28
    • NIPPON PETROCHEMICALS CO., LTD.
    • Niwa, MasahiroSuga, ShinjiroYoshikawa, MamoruYamaguchi, Yoshihisa
    • C08F10/00C08F2/34
    • C08F10/00Y10S526/901C08F2/34
    • In the polymerization of olefins using a catalyst comprising an organoaluminum compound and a solid catalyst components containing titanium and/or vanadium; and magnesium in a vapor phase fluidized bed, the formation of sheet-like polymer and other abnormal conditions in the initial stage of the polymerization are avoided by means of previous drying of the reactor by feeding an organoaluminum compound prior to the feeding of seed polymer, the quantity of said organoaluminum compound being calculated by the following equation (I):

      A=k·V 2/3    (I)

      wherein A is the feed quantity (mol) of the organoaluminum compound, k is a coefficient (mol/m²) in the range from 0.15 to 4, and V is the volume (m³) of the whole system including gas circulation pipings.
    • 在使用包含有机铝化合物的催化剂和含有钛和/或钒的固体催化剂组分的烯烃的聚合中; 和镁在气相流化床中,在聚合初始阶段形成片状聚合物和其它异常条件通过在进料种子聚合物之前通过进料有机铝化合物先前干燥反应器来避免, 所述有机铝化合物的量通过下式(I)计算:A = kV <2/3>(I>其中A是有机铝化合物的进料量(mol),k是系数(mol / 2>)在0.15至4的范围内,V是包括气体循环管道在内的整个系统的体积(m 3)。