Process for the purification of an alkanolamine

Details Process for the purification of an alkanolamine Process for the purification of an alkanolamine

C - Chemistry, Metallurgy

07

C

C07C 213/10 (2006.01)

Patent

CA 2308704

A process for the purification of an aqueous alkanolamine which process comprises subjecting the alkanolamine to a distillation process carried out in one or more film-type evaporators and comprising at least two steps, wherein in the first step water is removed from the aqueous alkanolamine and in the second step the de-watered alkanolamine is further purified.

L'invention concerne un procédé de purification d'un alcalonamine aqueux. Ce procédé consiste à soumettre l'alcalonamine à un procédé de distillation réalisé dans un ou plusieurs évaporateurs de type à film et comporte au moins deux étapes. Au cours de la première étape, l'eau est retirée de l'alcalonamine aqueux et dans la deuxième étape, l'alcalonamine sans eau est purifié.

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