REFORMING METHOD FOR STEELMAKING SLAG AND REFORMED STEELMAKING SLAG

摘要

PPROBLEM TO BE SOLVED: To provide a reforming method for steelmaking slag improved not only in the reduction of f-CaO but also in the reduction of higroscopicity, and the reformed steelmaking slag. PSOLUTION: In this reforming method, an SiOSB2/SB/AlSB2/SBOSB3/SB-containing material (such as a blast furnace slag, a de-siliconed slag, a fry ash, a waste glass, a waste concrete, a waste brick, an aluminum ash, an alumidross, an aluminum refining slag, a municipal waste, a burned ash of a sewage sludge, an ash melt slag, a sewage sludge melt slag, a car shredder dust combustion ash), are mixed in a steelmaking slag, and heat treated at a temperature higher than their melting points, and favorably cooled slowly at a cooling rate of not greater than 10C/minute. PCOPYRIGHT: (C)2006,JPO&NCIPI