Method of continuously operating a counter-flow washing column

Details Method of continuously operating a counter-flow washing column Method of continuously operating a counter-flow washing column

1985-06-20

1987-04-21

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523315, 528498, 528501, 528503, 210744, C08F 624

Patent

active

046597557

ABSTRACT:
The method of continuously operating a counter-flow washing column which is supplied with a slurry of solid polymer particles in a diluent from a continuous polymerization zone and with washing liquid for extracting wash slurry and introducing it into a heat tube to separate the vapor of the washing liquid and the solid polymer particles.
The improvement involves controlling the extraction amount of the wash slurry from the column by means of:

REFERENCES:
patent: 3324093 (1967-06-01), Alleman
patent: 3644583 (1972-02-01), Scoggin
patent: 4126743 (1978-11-01), Shiomura et al.

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