Gas-phase fluidized-bed reactor, multivessel polymerization...

Details Gas-phase fluidized-bed reactor, multivessel polymerization... Gas-phase fluidized-bed reactor, multivessel polymerization...

2011-06-07

2011-06-07

Wu, David (Department: 1762)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

C422S143000, C422S145000, C526S072000

Reexamination Certificate

active

07955565

ABSTRACT:
The gas-phase fluidized-bed reactor conducting reaction by feeding a gas, through a gas-distribution plate located at the lower part of a reaction vessel, into a fluidized bed formed on the gas-distribution plate, wherein the reaction vessel is made up so as to have a narrowed part at a specified position of the gas flow passage above the gas-distribution plate, and the fluidized bed is formed in the area from below the narrowed part to above the narrowed part. The gas-phase fluidized bed rector of the present invention allows manufacturing polymers having excellent homogeneity of polymer structure in gas-phase polymerization.

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