Mineral oils: processes and products – Refining – Halogen contaminant removal
Patent
1992-12-28
1994-07-05
Myers, Helane
Mineral oils: processes and products
Refining
Halogen contaminant removal
588207, 210909, 134 251, C10G 2906
Patent
active
053264673
ABSTRACT:
A method of recovering polychlorinated biphenyls from solution, which comprises a multi-step method of mixing and reacting an alkali metal or alkaline earth hydroxide in glycol solution with polychlorinated biphenyls in non-aqueous solvent to form biphenyl phenoxy-type anions, separating the glycol solution containing biphenyl phenoxy-type anions from the non-aqueous solvent, and separating the biphenyl phenoxy-type anions from the glycol solution.
REFERENCES:
patent: 4351718 (1982-09-01), Brunelle
patent: 4612404 (1986-09-01), Thyagarajan
Horton Robert L.
Shong Robert G.
Bailey James L.
Delhommer Harold J.
Griffin Walter D.
Myers Helane
Priem Kenneth R.
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