abstract |
A method is provided for effecting the removal of polychlorinated biphenyls from hydrocarbon oils, such as transformer oil, contaminated with more than 50 ppm of such polychlorinated biphenyls. There is utilized in the contaminated oil, while it is being agitated, dispersed metallic sodium, an aprotic ion-complexing solvent, for example, diglyme, and an oil-soluble electron carrier, such as naphthalene. |