Gas-phase fluidized-bed reactor

Details Gas-phase fluidized-bed reactor Gas-phase fluidized-bed reactor

2005-06-07

2005-06-07

Cheung, William K. (Department: 1713)

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

Synthetic resins

Removing and recycling removed material from an ongoing...

C526S901000, C422S139000, C422S143000, C422S146000

Reexamination Certificate

active

06903168

ABSTRACT:
Ethylenically unsaturated monomers are polymerized in a gas-phase fluidized-bed reactor comprising a reactor space (1) in the form of a vertical tube, a calming zone (2) adjoining the upper part of the reactor space, a circulated gas line (3), a circulated gas compressor (4), a cooling apparatus (5), a gas distributor plate (6) which forms the lower boundary of the reactor space and, if desired, a flow divider (7), wherein the gas distributor plate (6) has a plurality of gas flow orifices (8) whose outlet sides are widened conically.

REFERENCES:
patent: 3829983 (1974-08-01), White
patent: 5753191 (1998-05-01), Yamamoto et al.
patent: 825204 (1998-02-01), None

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