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FLUORINE-CONTAINING SLAG-DERIVED MATERIAL AND METHOD FOR PREVENTING ELUTION OF FLUORINE IN THE SLAG
FLUORINE-CONTAINING SLAG-DERIVED MATERIAL AND METHOD FOR PREVENTING ELUTION OF FLUORINE IN THE SLAG
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机译:含氟渣块的材料和防止渣中氟洗脱的方法
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摘要
PROBLEM TO BE SOLVED: To provide a fluorine-containing flag-derived material derived from fluorine-containing slag, elutes little quantity of fluorine into water and suitably used for civil engineering and construction such as a roadbed material, and provide a method for supressing elution of fluorine from the fluorine-containing slag into water by stabilizing fluorine in the slag. SOLUTION: This method for restraining elution of fluorine includes reacting fluorine in the slag with chromium by adding a chromium-containing material to the slag of a molten state and mixing them, and forming a hardly soluble fluorine compound expressed by MF(CrO4 )3 (where, M is one or more elements selected among Mg, Mn, Ca and Fe).
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