Title:
DESTRUCTION OF PERCHLORATE IN FERRIC CHLORIDE AND HYDROCHLORIC ACID SOLUTION WITH CONTROL OF TEMPERATURE, PRESSURE AND CHEMICAL REAGENTS
Document Type and Number:
WIPO Patent Application WO2003101617
Kind Code:
B1
Abstract:
A method is described to decompose perchlorate in a FeCl<3#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 170>0< 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.
Inventors:
GU BAOHUA (US)
COLE DAVID R (US)
BROWN GILBERT M (US)
COLE DAVID R (US)
BROWN GILBERT M (US)
Application Number:
PCT/US2003/016724
Publication Date:
February 12, 2004
Filing Date:
May 28, 2003
Export Citation:
Assignee:
UT BATTELLE LLC (US)
GU BAOHUA (US)
COLE DAVID R (US)
BROWN GILBERT M (US)
GU BAOHUA (US)
COLE DAVID R (US)
BROWN GILBERT M (US)
International Classes:
B01J49/00; C02F1/42; (IPC1-7): B01J49/00; C02F1/02
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