Method for removing residual monomers

Details Method for removing residual monomers Method for removing residual monomers

1996-07-31

1998-09-08

Manoharan, Virginia

Distillation: processes, separatory

Convective distillation with normally gaseous medium, e.g., air

159 404, 159 44, 159 163, 159 471, 159DIG10, 203 92, 203 96, 203DIG9, 528500, 528501, B01D 338

Patent

active

058040390

ABSTRACT:
A method for removing residual vinyl chloride monomers from an aqueous slurry is disclosed. The method preferably utilizes a tower having a plurality of vertically spaced plates, which define a plurality of chambers, each chamber defined between adjacent plates. The tower features a plate in one of the chambers having a diameter of 1.05 to 5 times larger than the diameter of the plates in chambers above and below the chamber having the large plate. The method is based upon introducing the slurry to a particular location in the tower depending upon the porosity of the polyvinyl chloride in the slurry.

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