Process for feeding catalyst to fluidized bed for vapor phase po

Details Process for feeding catalyst to fluidized bed for vapor phase po Process for feeding catalyst to fluidized bed for vapor phase po

1993-02-22

1994-05-10

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526901, 422131, 422145, C08F 234

Patent

active

053108337

ABSTRACT:
A process for feeding a powder catalyst with a gas intermittently to a high-pressure fluidized bed reactor for the vapor phase polymerization of olefin, wherein the cross section of a catalyst feed pipe is reduced midway through the pipe to thereby make continual catalyst feeding possible and prevent the formation of a lump polymer.

REFERENCES:
patent: 4687381 (1987-08-01), Dumain et al.

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