Process for the purification of propylene oxide

Details Process for the purification of propylene oxide Process for the purification of propylene oxide

C - Chemistry, Metallurgy

07

D

C07D 301/32 (2006.01) C07D 303/04 (2006.01)

Patent

CA 2367867

Process for improving the quality of a propylene oxide contaminated with poly(propylene oxide), which process comprises the steps of: (a) contacting the liquid propylene oxide with an adsorbent consisting of magnesium silicate and/or calcium silicate under such conditions that the amount of poly(propylene oxide) is reduced to the desired level, and (b) recovering the purified propylene oxide product.

Un procédé permettant d'améliorer la qualité d'un oxyde de propylène contaminé par du poly(propylène oxyde) comprend les étapes suivantes : (a) on met en contact l'oxyde de propylène liquide avec un adsorbant constitué de silicate de magnésium et/ou de silicate de calcium dans des conditions telles que la quantité de poly(propylène oxyde) diminue jusqu'à atteindre le niveau désiré, et (b) on récupère le produit oxyde de propylène purifié.

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