Purification of propylene oxide.

摘要

Process for improving the quality of propylene oxide contaminated with minute quantities of high molecular weight poly(propylene oxide) by contacting liquid propylene oxide with certain solid adsorbents, namely activated carbon and attapulgite, thereby obtaining a substantially pure oxide product essentially free of high molecular weight poly(propylene oxide) suitable for conversion to polyether polyols capable of producing high resilient flexible polyurethane foams exhibiting high rise and substantially free of blow hole formation.