Process for the purification of an aqueous solution of an...

Details Process for the purification of an aqueous solution of an... Process for the purification of an aqueous solution of an...

C - Chemistry, Metallurgy

01

D

C01D 3/16 (2006.01) B01D 15/00 (2006.01) C01B 7/14 (2006.01)

Patent

CA 2099184

L'invention concerne un procédé de purification d'une solution aqueuse de chlorure de métal alcalin contenant de l'iode dans lequel on l'oxyde en iode moléculaire puis qu'on l'adsorbe sur du charbon actif. En oxydant le charbon actif par une solution contenant du chlore actif avant d'adsorber l'iode on peut abaisser la teneur en iode de la solution jusqu'à 0,05 mg/l. L'invention est particulièrement utile pour purifier les saumures de chlorure de sodium qu'on électrolyse dans des cellules à membranes.

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