B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 49/00 (2006.01) C02F 1/02 (2006.01) C02F 1/42 (2006.01)
Patent
CA 2487330
A method is described to decompose perchlorate in a FeCl3#191/HCl aqueous solution such as would be used to regenerate an anion exchange resin used to remove perchlorate. The solution is mixed with a reducing agent, preferably an organic alcohol and/or ferrous chloride, and heated to about 1700 to decompose the perchlorate. Lower temperatures may be employed if a catalyst is added. An apparatus to perform the method using two heat exchangers is disclosed.
L'invention concerne un procédé permettant de décomposer le perchlorate dans une solution aqueuse de FeCl?3¿/HCl, du type servant à la régénération d'une résine échangeuse d'anions utilisée pour l'élimination du prechlorate. On mélange cette solution avec un agent réducteur, de préférence un alcool organique et/ou un chlorure ferreux, et on chauffe ce mélange à environ 170· pour décomposer le perchlorate. L'addition d'un catalyseur permet d'utiliser des températures plus basses. L'invention concerne également un dispositif comprenant deux échangeurs de chaleur, permettant la mise en oeuvre de ce procédé. ? ¿
Brown Gilbert M.
Cole David R.
Gu Baohua
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Ut-Battelle Llc
LandOfFree
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