PURPOSE: To prevent leak and generation of heat at the time of treating by absorbing dimethyl sulfide or diethyl sulfide with a solvent which does not mix with water, followed by contacting the obtd. solvent with an aqueous solution of an oxidizing agent and subsequently, the obtd. oxides are transferred to a water layer, followed by separating the liquid layers.
CONSTITUTION: The exhaust gas contg. the dimethyl sulfide or the diethyl sulfide exhausted from a pulp manufacturing factory or a chemical plant is absorbed with the solvent such as toluene etc. which does not mix with water and dissolves dialkyl sulfide. And then, the aqueous solution of the oxidizing agent such as calcium hypochlorite is added to said solvent which absorbs said exhaust gas, and is agitated it. As the dialkyl sulfide is oxidized successively, and the oxide transfers to the aqueous layer, the treated aqueous solution and the solvent layers are separated, and the aqueous layer is discarded after separation.
KAMIGUCHI TOSHIAKI
HASHIMUKAI MASATSUGU
NITTA KAZUNARI
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