Extractive distillation of propylene oxide using propanol

Details Extractive distillation of propylene oxide using propanol Extractive distillation of propylene oxide using propanol

1996-06-03

1997-04-15

Manoharan, Virginia

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

056205686

ABSTRACT:
An extractive distillation agent of 1-propanol is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead distillate fraction of essentially anhydrous propylene oxide contaminated with reduced quantities of acetone and methanol, and a heavier bottoms distillation fraction containing substantially all of the 1-propanol, water and acetone, some of the methanol and heavier by-products of propylene oxide formed in the distillation column.

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