Dehalogenation of halogenated aromatic compounds

Details Dehalogenation of halogenated aromatic compounds Dehalogenation of halogenated aromatic compounds

C - Chemistry, Metallurgy

07

C

31/1, 260/681.8,

C07C 1/26 (2006.01) C07C 15/04 (2006.01) C07C 15/14 (2006.01) A62D 3/00 (2006.01)

Patent

CA 1296744

TITLE DEHALOGENATION OF HALOGENATED AROMATIC COMPOUNDS INVENTORS David Griller Jalal A. Hawari Derek J. McPhee ABSTRACT OF THE DISCLOSURE Various halogenated aromatic compounds, particularly poly- chlorinated biphenyls and the like, are dehalogenated by reaction with alkali metal in the presence liquid hydrosiloxane. A selected solvent or diluent may be present. The alkali metal halide reaction product may be removed by washing. It has been found substantially complete dehalogenation is achieved readily at ambient temperatures when the hydrosiloxane is present The dehalogenated aromatic moiety normally is recovered intact. This method has been found very effective in the destruction and removal of PCB contaminants.

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