Process and apparatus for gas phase polymerisation of...

Details Process and apparatus for gas phase polymerisation of... Process and apparatus for gas phase polymerisation of...

C - Chemistry, Metallurgy

08

F

23/381, 402/396

C08F 2/34 (2006.01) B01J 8/00 (2006.01) B01J 8/24 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2008653

Case7159/B195(2) ABSTRACT OF THE DISCLOSURE Process and apparatus for the gas-phase polymerization of olefins in a fluidized-bed reactor A process for polymerizing olefins in a gas-phase fluidized-bed reactor comprising a reactor body (1), optionally surmounted by a disengagement chamber (2), in which fine particles entrained by the gas mixture leaving the top of the reactor are separated from the gas and recycled to the upper portion of the reactor body. Polymer is withdrawn from the reactor body (1) via at least two polymer outlets, at least one of which (15) is in the lower portion of the reactor body (1) and at least one of which (16) is in the upper portion of the reactor body at a position below the top of the fluidized bed. The invention includes apparatus for polymerizing olefins and the use of the apparatus.

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