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Catalytic destruction of perchlorate in ferric chloride and hydrochloric acid solution with control of temperature, pressure and chemical reagents

United States Patent

October 5, 2004
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method is described to decompose perchlorate in a FeCl.sub.3 /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 can be heated to accelerate the decomposition of perchlorate. Lower temperatures may be employed if a catalyst is added.
Gu; Baohua (Oak Ridge, TN), Cole; David R. (Knoxville, TN), Brown; Gilbert M. (Knoxville, TN)
U.T. Battelle (Oak Ridge, TN)
10/ 157,407
May 29, 2002
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with United States Government support under Contract No. DE-AC05-00OR22725 between the United States Department of Energy and UT-BATTELLE, LLC and the United States Government has certain rights in this invention.