Process for the solvent extraction for the radiolysis and dehalo

Details Process for the solvent extraction for the radiolysis and dehalo Process for the solvent extraction for the radiolysis and dehalo

1998-10-09

2000-10-17

Gorgos, Kathryn

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

588 17, 588210, 250253, C07C 100, A62D 300, G01V 500

Patent

active

061325619

ABSTRACT:
A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacting a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

REFERENCES:
patent: 4144152 (1979-03-01), Kitchens
patent: 4842448 (1989-06-01), Koerner et al.
patent: 5311566 (1994-05-01), Curry et al.
patent: 5512253 (1996-04-01), Woodbridge et al.
patent: 5561065 (1996-10-01), Schabron
patent: 5799257 (1998-08-01), Meikrantz et al.

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