Distillation for separating dialkylketones from lower chlorohydr

Details Distillation for separating dialkylketones from lower chlorohydr Distillation for separating dialkylketones from lower chlorohydr

1978-06-21

1980-07-22

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Including addition of water or steam

203 96, 568410, 568411, B01D 338, C07C 4524

Patent

active

042138329

ABSTRACT:
A process for separating the constituents of azeotropic mixtures of acetone and other lower ketones from lower halogenated hydrocarbons. Water is added to the azeotropic mixture of acetone and the lower halogenated hydrocarbon for breaking up of the azeotrope, and the halogenated halohydrocarbon is distilled off.

REFERENCES:
patent: 2662848 (1953-12-01), Emerson et al.
patent: 3198837 (1965-08-01), Smidt et al.
patent: 3276973 (1966-10-01), Burmaster et al.
patent: 3330741 (1967-07-01), Theilig et al.
patent: 3547783 (1970-12-01), Yamaguchi et al.
patent: 3686078 (1972-08-01), Hauptmann et al.
Iino et al., "Removal of Small Amounts of Methylene Chloride in Acetone by Extr. Dist. Empl. Salts as Sep. Ags. Journal of Chemical Engineering of Japan, 4, No. 1, 1971 (p. 22).

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