Distillation of ethylene oxide

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 303/04 (2006.01) B01D 3/16 (2006.01) C07D 301/32 (2006.01)

Patent

CA 2233209

A process is proposed for distilling ethylene oxide from a mixture containing ethylene oxide in a column at an absolute pressure of 2-10 bar and a temperature of 20-180 ~C; pure ethylene oxide is removed at the top or through a side discharge in the column and distillation takes place in a column divided up internally into a number of successive zones with structured sheet metal packs or piles of fillers, one or more quenching systems located outside the column being allocated to said zones.

Procédé de distillation d'oxyde d'éthylène à partir d'un mélange renfermant de l'oxyde d'éthylène, dans une colonne, sous une pression absolue de 2 à 10 bar et à une température de 20 à 180 DEG C, procédé selon lequel on soutire de l'oxyde d'éthylène pur par le sommet ou par une prise latérale de la colonne; on effectue la distillation dans une colonne présentant à l'intérieur plusieurs zones disposées les unes derrière les autres, garnies de paquets structurés de tôles métalliques ou d'empilements de charges, un ou plusieurs systèmes de refroidissement brusque agencés à l'extérieur de la colonne étant associés à ces zones.

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