Mineral oils: processes and products – Refining – Halogen contaminant removal
Patent
1981-09-25
1982-10-12
Davis, Curtis R.
Mineral oils: processes and products
Refining
Halogen contaminant removal
585864, C07C 710, C10G 1902, C10G 2116
Patent
active
043537936
ABSTRACT:
A method is provided for reducing the level of polychlorinated aromatic hydrocarbons, "PCB's", while dissolved in an organic solvent, for example, transformer oil. Removal of the polychlorinated aromatic hydrocarbon, can be accomplished by treating the contaminated solution with a mixture of monocapped polyalkyleneglycol alkyl ether and an alkali metal hydroxide.
REFERENCES:
patent: 2160632 (1939-05-01), Yabroff et al.
patent: 2183801 (1939-12-01), Yabroff
patent: 2212105 (1940-08-01), Yabroff
O. Hutzinger et al., "Reaction with Alkoxide", Chemistry of PCB's, pp. 115-118.
Leo Weitzman, "Treatment and Destruction of PCB and PCB Contaminated Materials", Preprint Extended Abstract, Presented before the Division of Environmental Chemistry, Am. Chem. Soc., NY, NY, Aug. 1981, pp. 42-44.
Pytlewski et al., "The Reaction of PCB's with Sodium Oxygen, and Polyethylene Glycols", U.S. EPA Off. Research and Development, Treatment of Hazardous Waste Symposium, (1980), pp. 72-76.
Franklyn Institute, U.S. patent application Ser. No. 158,359, Filed Nov. 6, 1980, Derwent Abstract Service, Access No. 79972 D/44.
Davis Curtis R.
Davis Jr. James C.
General Electric Company
Maull Helane E.
Teoli William A.
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