Gaseous phase fluidized-bed reactor

Details Gaseous phase fluidized-bed reactor Gaseous phase fluidized-bed reactor

2009-09-07

2011-10-11

Handal, Kaity V. (Department: 1723)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C048S127100, C048S1970FM, C422S139000, C422S143000, C422S145000, C422S146000, C422S198000, C422S234000, C422S235000

Reexamination Certificate

active

08034884

ABSTRACT:
Gas-phase fluidized-bed reactor for polymerizing ethylenically unsaturated monomers, comprising a reactor chamber (1) in the form of a vertical tube, if desired a calming zone (2) following the upper section of the reactor chamber, a circulation gas line (3), a circulation gas compressor (4) and a cooling device (5), where, in the region of transition of the reaction gas from the circulation gas line into the reactor chamber and in the lower section of the reactor chamber itself, there is either no gas distributor plate at all or only a gas distributor plate the total surface area of whose gas orifices is more than 20% of the total surface area of said gas distributor plate.

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