TREATMENT METHOD OF STEEL MAKING SLAG

摘要

PROBLEM TO BE SOLVED: To provide a treatment method of slag capable of effectively suppressing the elution of fluorine from steel making slag and implementing at a low cost without using a special equipment or the like. SOLUTION: In this treatment method of slag, a mineral (B) containing calcium is added to steel making slag (A) which has the fluorine content of 0.15 mass% or more and the phosphorus content of 0.3 mass% or more and fluorine is fixed in slag by forming a hardly soluble compound containing fluorine from components contained in steel making slag (A) and calcium contained in the mineral (B). COPYRIGHT: (C)2009,JPO&INPIT