Removal of water, acetone and methanol from propylene oxide by e

Details Removal of water, acetone and methanol from propylene oxide by e Removal of water, acetone and methanol from propylene oxide by e

1991-11-01

1992-10-13

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 14, 203 78, 203 84, 549541, B01D 340, C07D30132

Patent

active

051548046

ABSTRACT:
An extractive distillation agent consisting essentially of a monohydroxy alkoxyalkanol containing 5 to 8 carbon atoms is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water to obtain an overhead distillate fraction consisting of essentially anhydrous propylene oxide, and a heavier bottoms distillation fraction containing substantially all of the monohydroxy alkoxyalkanol and water introduced into the distillation column.

REFERENCES:
patent: 3265593 (1966-08-01), Leis et al.
patent: 3326780 (1967-06-01), Wiist
patent: 3578568 (1971-05-01), Washall
patent: 3715284 (1973-02-01), Burns et al.
patent: 3838020 (1974-09-01), Kageyama et al.
patent: 5000825 (1991-03-01), Shih et al.
patent: 5006206 (1991-04-01), Shih et al.

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