Method of destruction of polychlorinated biphenyls

Details Method of destruction of polychlorinated biphenyls Method of destruction of polychlorinated biphenyls

1981-06-18

1983-04-12

Cintins, Ivars C.

Mineral oils: processes and products

Refining

Halogen contaminant removal

210712, 210737, 210757, 210909, 210719, C10G 2904

Patent

active

043797466

ABSTRACT:
A field method for removing polychlorinated biphenyls (PCB's) and similar halogenated aromatic hydrocarbons from silicone based oils and hydrocarbon fluids such as transformer oils contaminated with them by contacting the contaminated oil with a hydrocarbon dispersion of sodium, reacting the mixture of oil and sodium dispersion at a temperature above about 75.degree. C., and passing the treated oil through a filter medium or other separating means to remove particulate and other contaminating material.

REFERENCES:
patent: 3686337 (1972-08-01), Chang
patent: 4127598 (1978-11-01), McEntee
The Franklin Institute News, vol. 44, No. 2, Jun.-Jul., 1980.
Oku et al., "A Complete Dechlorination of Polychlorinated Biphenyl by Sodium Naphtnalene", Chemistry and Industry, Nov. 4, 1978, pp. 841-842.
"Sodium Dispersion", Brochure of U.S. Industrial Chemicals Co., pp. 38-39.
Berry R., "Rerefining Waste Oil", Chemical Engineering, Apr. 23, 1979, pp. 104-106.
Chem. Abs. 82:125822u, 1975.
Science News, vol. 116, p. 422.
Parker and Cox, Plant Engineering, Aug. 21, 1980, p. 133.
"A Safe Efficient Chemical Disposal Method for Polychlorinated Biphenyls--PCB's", Goodyear Publication (1980).

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