C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 210/16 (2006.01) B01J 8/00 (2006.01) B01J 8/24 (2006.01) C08F 10/00 (2006.01) C08F 110/00 (2006.01)
Patent
CA 2307388
There are provided: (1) a fluidized bed reactor for gas phase olefin polymerization, which has at least one drawing-out means for drawing out olefinic polymer powder within every zone of: (i) a zone (zone X) from a gas distribution plate to a height L1 satisfying the following formula (1); and (ii) another zone (zone Y) from a height L2 satisfying the following formula (2) to a powder level height of a fluidized bed, L1 < 0.1 x D (1) L2 = 0.1 x D (2) wherein L1 is a height from the gas distribution plate to an upper limit of said zone X; L2 is a height from the gas distribution plate to a lower limit of said zone Y; and D is the inside diameter of the fluidized bed reactor for gas phase polymerization, in which the olefinic polymer powder forms the fluidized bed, (2) a process for polymerizing olefin and (3) a process for producing an olefinic polymer, each of which processes comprises the steps of: (i) polymerizing an olefin in the aforesaid reactor; and (ii) drawing out the produced olefinic polymer powder through the aforesaid drawing-out means for drawing out the olefinic polymer powder.
Hamba Masashi
Ichikawa Yoshiyuki
Konaka Tsutomu
Ogino Koichi
Kirby Eades Gale Baker
Sumitomo Chemical Company Limited
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