Process for controlling polymer particle size in vapor phase pol

Details Process for controlling polymer particle size in vapor phase pol Process for controlling polymer particle size in vapor phase pol

1980-09-29

1981-09-01

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 87, 526352, 526901, 526903, 526909, C08F 234

Patent

active

042873274

ABSTRACT:
A process for controlling polymer particle size distribution in the vapor phase polymerization of olefins comprises contacting fresh catalyst with a stream of wetting liquid before the catalyst is dispersed in the polymer bed, said wetting liquid being introduced at a wetting liquid flux density greater than about 20.

REFERENCES:
patent: 3875075 (1975-04-01), Boone et al.
patent: 3925338 (1975-12-01), Ort
patent: 3957448 (1976-05-01), Shepard et al.
patent: 3965083 (1976-06-01), Jezl et al.
patent: 3971768 (1976-07-01), Peters et al.
patent: 4003712 (1977-01-01), Miller
patent: 4101289 (1978-07-01), Jezl et al.
patent: 4130699 (1978-12-01), Hoff et al.

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