Dehydration of propylene oxide by extracting distillation

Details Dehydration of propylene oxide by extracting distillation Dehydration of propylene oxide by extracting distillation

1991-11-01

1992-09-08

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

051455633

ABSTRACT:
An extractive distillation agent consisting essentially of glycerol-1,3-di-t-butylether 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 glycerol-1,3-di-t-butylether and water introduced into the distillation column.

REFERENCES:
patent: 3265593 (1966-08-01), Leis et al.
patent: 3838020 (1974-09-01), Kageyama et al.
patent: 3878568 (1971-05-01), Washall
patent: 5000825 (1991-03-01), Shih et al.

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