Process for separating and recovering residual monomers from aqu

Details Process for separating and recovering residual monomers from aqu Process for separating and recovering residual monomers from aqu

1975-04-21

1976-09-14

Sofer, Jack

Distillation: processes, separatory

Filming of distilland for vaporization

202236, 159 13R, 159 49, 159 17VS, 159DIG10, 526328, 526341, 526342, 526501, B01D 300, B01D 122, C08F22042

Patent

active

039805298

ABSTRACT:
The invention relates to a process for the recovery of acrylonitrile and other monomers from an aqueous polymer dispersion by continuous distillation in a thin-layer evaporator under reduced pressure, condensation of the evaporated monomers in a condenser under the same or similar reduced pressure and subsequent condensation or absorption respectively of the monomer vapors which have not been condensed in the condenser at a higher pressure.

REFERENCES:
patent: 2348328 (1944-05-01), Chapman et al.
patent: 3073380 (1963-01-01), Palmason
patent: 3223534 (1965-12-01), Kelly
patent: 3454542 (1969-07-01), Cheape, Jr. et al.
patent: 3467162 (1969-09-01), Putnam
patent: 3634300 (1972-01-01), Fischer et al.

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