Ionic liquid and method of dehydration thereof, electrical...

C - Chemistry – Metallurgy – 07 – C

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C07C 213/10 (2006.01) B01D 17/06 (2006.01) C07C 217/08 (2006.01) H01B 1/06 (2006.01) H01B 1/12 (2006.01) H01G 9/038 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2454305

Either an ionic liquid which is liquid at 25~C or an organic solution containing one or more ionic compounds is contacted with an electrode in an atmosphere having a dew point of -40~C or lower or at a reduced pressure of 76 Torr or lower to electrolyze water contained in the ionic liquid or organic solvent to thereby reduce the water content. Thus, an ionic liquid which has been dehydrated to a high degree can be obtained.

Selon l'invention, on met en contact, soit un liquide ionique, liquide à 25 ·C, soit une solution organique, contenant un ou plusieurs composés ioniques, avec une électrode dans une atmosphère dont le point de rosée est inférieur ou égal à 40 ·C, ou dont la pression réduite est inférieure ou égale à 76 Torr, afin d'électrolyser l'eau contenue dans le liquide ionique, ou dans le solvant organique, et diminuer ainsi la teneur en eau. Il est ainsi possible d'obtenir un liquide ionique déshydraté à un degré élevé.

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