Extractive distillation of propylene oxide using propanol

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

C - Chemistry, Metallurgy

07

D

C07D 303/04 (2006.01) B01D 3/40 (2006.01) C07D 301/32 (2006.01)

Patent

CA 2190710

An extractive distillation agent consisting essentially 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 consisting 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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