METHOD FOR FEEDING SOLID ALKALI AND DECHLORINATION METHOD FOR ORGANIC CHLORINE COMPOUND

摘要

PROBLEM TO BE SOLVED: To provide a method which enables the stable pulverization and continuous feeding of solid alkali in a chemical extraction decomposition method for treating PCB-contaminated oil.;SOLUTION: After the solid alkali such as sodium hydroxide or potassium hydroxide is mixed with an aprotic polar solvent such as 1,3-dimethyl-2-imidazolidinone, it is wet-pulverized to form a slurry and the solid alkali is continuously fed by feeding the slurry. The dechlorination reaction is carried out in a reaction tank by stirring and mixing the organic chlorine compound and the alkali in an aprotic polar solvent using the feed method of the solid alkali.;COPYRIGHT: (C)2004,JPO