Cleaning and liquid contact with solids – Processes – Miscellaneous
Patent
1989-05-11
1991-05-28
Pal, Asok
Cleaning and liquid contact with solids
Processes
Miscellaneous
2082625, 210909, 252581, 585469, 585538, 585612, 585641, 423DIG20, B08B 700
Patent
active
050191756
ABSTRACT:
A method for the destruction of halogenated organic compounds contained in a contaminated medium comprises adding an aqueous solution of polyethylene glycol to the contaminated medium in an amount to provide from about 0.1 to about 20 weight percent of polyethylene glycol, based on the weight of the contaminated medium. An alkali metal hydroxide is then added in an amount of from about 2 to about 20 weight percent, based on the weight of the contaminated medium. The medium is then heated to substantially dehydrate the medium and then further heated at a temperature between about 100.degree. and 350.degree. C. to effect destruction of the halogenated organic compounds. An acid is then added to the medium in an amount sufficient to neutralize the same.
REFERENCES:
patent: 4327027 (1982-04-01), Howard et al.
patent: 4337368 (1982-06-01), Pytlewski et al.
patent: 4351718 (1982-09-01), Brunelle
patent: 4353793 (1982-10-01), Brunelle
patent: 4400552 (1983-08-01), Pytlewski et al.
patent: 4574013 (1986-03-01), Peterson
patent: 4602994 (1986-07-01), Pytlewski et al.
patent: 4663027 (1987-05-01), Mendiratta et al.
patent: 4675464 (1987-06-01), Rogers et al.
patent: 4685220 (1987-08-01), Meenan et al.
patent: 4761221 (1988-08-01), Rossi et al.
patent: 4792407 (1988-12-01), Zeff et al.
patent: 4793937 (1988-12-01), Meenan et al.
Frank J. Iaconianni, Destruction of PCBs--Environmental Applications of Alkali Metal Polyethylene Glycolate Complexes, EPA/600/2-85/108, Franklin Research Center, Philadelphia, Pa. 19103 (Sep. 1985).
Kornel et al., "PCB Destruction: A Novel Dehalogenation Reagent", Journal of Hazardous Materials, 12 (1985), pp. 161-176.
Chemical Abstracts, vol. 82, No. 139620P (1975).
Iaconianni et al., Destruction of PCB's--Environmental Applications of Alkali Metal Polyethylene Complexes, National Technical Information Service, Sep. 1985.
Kornel Alfred
Rogers Charles J.
Sparks Harold L.
Pal Asok
The United States of America as represented by the Administrator
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