Process for removing monomer from vinyl chloride resin slurry by

Details Process for removing monomer from vinyl chloride resin slurry by Process for removing monomer from vinyl chloride resin slurry by

1980-07-30

1983-01-18

Yudkoff, Norman

Concentrating evaporators

Processes

159165, 159DIG10, 528500, 134198, B01D 114

Patent

active

043690920

ABSTRACT:
When vinyl chloride resin slurry containing vinyl chloride monomer is contacted with steam in counterflow manner in a column provided with at least one perforated plate having a downcomer to remove the monomer, the lower surface of the plate is washed by hot water injection, whereby clogging of the small holes of the perforated plate is prevented.

REFERENCES:
patent: 748821 (1904-01-01), Wackerow
patent: 2511817 (1950-06-01), Sheldon
patent: 2844568 (1958-07-01), Mertz
patent: 3108608 (1963-10-01), Mahowald
patent: 3112263 (1963-11-01), Ellila
patent: 3398831 (1968-08-01), Jones
patent: 4228273 (1980-10-01), Hughes

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