Distillation: processes – separatory – Including addition of water or steam
Patent
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).
Khanna Nirmal K.
Raczynski Robert F.
Zudkevitch David
Allied Chemical Corporation
Bascomb, Jr. Wilbur L.
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