Drying quaternary ammonium compounds

Details Drying quaternary ammonium compounds Drying quaternary ammonium compounds

1979-10-15

1981-05-26

Sever, Frank

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 58, 564291, B01D 336

Patent

active

042696658

ABSTRACT:
A method of drying quaternary ammonium compounds for use as additives in the anhydrous anionic polymerization of 2-pyrrolidone is disclosed.
The method consists of dissolving or suspending the quaternary ammonium compound in 2-pyrrolidone and distilling over, under reduced pressure, a portion of the 2-pyrrolidone whereby the water is removed.

REFERENCES:
patent: 2638463 (1953-05-01), Ney et al.
patent: 2809958 (1957-10-01), Barnes et al.
patent: 2973343 (1961-02-01), Ney
patent: 3060153 (1962-10-01), Follett
patent: 3069392 (1962-12-01), Clark et al.
patent: 3132078 (1964-05-01), Backlund
patent: 3148214 (1964-09-01), Trenton
patent: 3174951 (1965-03-01), Taber
patent: 3174951 (1965-03-01), Taber
patent: 3721652 (1970-09-01), Barnes
patent: 3835100 (1974-09-01), Sekiguchi et al.
patent: 4098774 (1978-07-01), Bacskai
Die Makromolekulare Chemie, 161, p. 64, (1972).
"Chemical Engineer's Handbook", Perry, 4th Ed., pp. 13-46 to 13-51.

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