Method for purifying hexamethylenediamine in mixtures of...

Details Method for purifying hexamethylenediamine in mixtures of... Method for purifying hexamethylenediamine in mixtures of...

C - Chemistry, Metallurgy

07

C

C07C 209/84 (2006.01) C07C 209/48 (2006.01) C07C 209/82 (2006.01) C07D 295/023 (2006.01) C25B 3/04 (2006.01) C07C 211/12 (2006.01)

Patent

CA 2336800

The invention relates to a method for reducing the quantity of an unsaturated cyclic imine (I) of formula (I) in a mixture containing hexamethylenediamine and an imine (I), R1 meaning an alkenyl radical with 3, 4, 5, 6, 7, 8, 9, 10, 11 carbon atoms belonging to the ring system, by electrochemically converting the imine (I) into a saturated cyclic amine of formula (II) in the presence of solvated protons.

L'invention concerne un procédé permettant de réduire la teneur en imine (I) cyclique insaturée représentée par la formule (I), (I) dans laquelle R?1¿ est un résidu alcényle comprenant 3, 4, 5, 6, 8, 9, 10, 11 atomes de carbones dans sa combinaison cyclique, dans un mélange comprenant de l'hexaméthylènediamine et une imine (I). Ce procédé consiste à convertir par voie électrochimique l'imine contenue dans un tel mélange en présence de protons solvatés pour obtenir une amine cyclique saturée de formule (II).

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