REMOVAL OF WATER AND ACETONE FROM PROPYLENE OXIDE BY EXTRACTIVE DISTILLATION

摘要

REMOVAL OF WATER AND ACETONE FROM PROPYLENE OXIDE BY EXTRACTIVE DISTILLATION (Docket No. 81,118-F) An extractive distillation agent consisting essentially of ethylene carbonate, propylene carbonate or a mixture thereof 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 extraction distillation solvent and water introduced into the distillation column.