|発明の名称||TREATMENT METHOD AND ITS ARRANGEMENT OF HALOGEN COMPOUND|
PROBLEM TO BE SOLVED: To provide a method of recovering halogen from a halogen compound, providing a highly pure halogen compound for carrying out detoxifying treatment, having durability and treating efficiently, and an arrangement.
SOLUTION: The treatment method of the halogen compound comprises the steps of carrying out combustion decomposition of the halogen compound, making an aqueous solution dissolving the combustion gas react with an aqueous solution containing calcium chloride, and settling it as a hardly soluble calcium compound. The settlement of the hardly soluble calcium compound is treated by introducing the aqueous solution of calcium chloride having a smaller amount than that of a chemical equivalent necessary for the halogen compound to react into one reactor to make it react and introducing the aqueous solution of calcium chloride having an amount larger than the chemical equivalent necessary to react the halogen compound into another reactor to react it. Or, the method and the arrangement comprise the treatment of the aqueous solution dissolving the combustion gas, the aqueous solution containing calcium chloride and the halogen compound in a static mixer.
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