Dechlorination of chlorinated hydrocarbons by soluble iron citra

Details Dechlorination of chlorinated hydrocarbons by soluble iron citra Dechlorination of chlorinated hydrocarbons by soluble iron citra

1994-03-28

1996-11-19

McCarthy, Neil

Liquid purification or separation

Processes

Chemical treatment

210908, 210909, 588206, C02F 170

Patent

active

055759262

ABSTRACT:
A method for significantly improving the dechlorination of chlorinated hydrocarbon compounds is disclosed. The method involves admixing preformed ferrous citrate with chlorinated hydrocarbon contaminated aqueous compositions both in situ and ex situ. The use of ferrous citrate decreases the oxidation potential of the Fe.sup.+2 /Fe.sup.+3 redox couple to cause oxidation by the chlorinated hydrocarbon with its concomitant reduction, thereby generating chloride ion.

REFERENCES:
patent: 4382865 (1983-05-01), Sweeny
patent: 4416767 (1983-11-01), Jordan
patent: 4758346 (1988-07-01), Johnson
patent: 5051030 (1991-09-01), Saha et al.
patent: 5093011 (1992-03-01), Friedman et al.
patent: 5096600 (1992-03-01), Hoch
patent: 5273657 (1993-12-01), Nakashima et al.

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