| 摘要 |
PROBLEM TO BE SOLVED: To make a detoxifying treatment of an organohalogen compound, and to effectively utilize a recovered oil produced by the above treatment. SOLUTION: The objective method for recovering a biphenyl oligomer is characterized by comprising the steps of reacting a halogenated biphenyl compound with an alkali metal or alkaline earth metal dispersed in a solvent and a hydrogen donor to form the biphenyl oligomer in a reaction liquid comprising the above solvent, etc., and isolating the biphenyl oligomer from the reaction liquid.
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