PROBLEM TO BE SOLVED: To rapidly decompose CMPO (octyl(phenyl)-N,N- diisocutylcarbamoilmethylphsophine oxide) safely, surely and by a mild condition. ;SOLUTION: The CMPO-containing matter is emulsified in an electrolyte containing an oxidation accelerating agent (silver ion) by an emulsifying machine of an emulsifying tank 6, and the electrolyte is fed to an anode chamber, and an electrolytic oxidation reaction is executed by energizing. An electrolysis is accelerated since a surface area of the CMPO containing with the electrolyte is enlarged by emulsifying the CMPO-containing matter. Since a sufficient CMPO decomposition is not attained by passing only once the electrolyte through an electrolytic cell, a batch type oxidizing method is adopted, and the anode liq. is circulated between the anode chamber, a thermostatic bath 7a and the emulsifying tank 6 by using a circulating pump 3a, and the electrolysis is continued in a state in which the CMPO-containing matter is always emulsified in the electrolyte. The cathode liq. is circuilaed between a cathode chamber and the thermostatic bath 7b by using the circulating pump 3b. And in the anode 4 and the cathode 5 is the electrical cell 1, a supplied current is controlled by a rectifier 8.;COPYRIGHT: (C)1998,JPO
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