Process for the continuous preparation of propylene glycols

Details Process for the continuous preparation of propylene glycols Process for the continuous preparation of propylene glycols

C - Chemistry, Metallurgy

07

C

C07C 29/03 (2006.01) B01D 3/14 (2006.01) B01D 3/40 (2006.01) C07C 29/10 (2006.01) C07D 301/12 (2006.01)

Patent

CA 2493707

The invention relates to a method for the continuous production of propylene glycols, characterised in comprising steps (i) to (iii): (i) reaction of propylene with hydrogen peroxide to give propylene oxide with propylene glycols obtained as a by-product, (ii) reaction of the propylene oxide obtained in step (i) with water to give propylene glycols, (iii) isolation of the propylene glycols obtained in steps (i) and (ii).

L'invention concerne un procédé de fabrication continue de propylène glycols caractérisé en ce qu'il consiste (i) à faire réagir du propylène avec du peroxyde d'hydrogène afin de former de l'oxyde de propylène, et des propylène glycols en tant que produits secondaires, (ii) à faire réagir l'oxyde de propylène formé en (i) avec de l'eau afin de former des propylène glycols, et (iii) à séparer les propylène glycols obtenus en (i) et en (ii).

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