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日本专利昭56—108813号介绍了一种用高炉渣对铁水进行预处理的方法。所用高炉渣的成分为:CaO25～50％,SiO_220～45％,Al_2O_310～20％,P_2O_5<1％。高炉渣的 S 含量应不超过所处理的铁水 S 含量的10倍。高炉渣既可用于铁水的脱硅处理,又可用于铁水的脱磷处理。当将高炉渣用作铁水的脱硅剂时,应将粉状的高炉渣和铁矿石一起喷吹到铁水中。此时高炉渣的单耗为10～20kg/t铁,铁矿石的单耗为4kg/t 铁。铁水经用高
Japanese Patent No. Sho 56-108813 describes a method of pretreating hot metal with blast furnace slag. Blast furnace slag composition used is: CaO25 ~ 50%, SiO220 ~ 45%, Al2O3 ~ 20%, P2O5 <1%. S content of blast furnace slag should not exceed 10 times the content of molten iron S treated. Blast furnace slag can be used for desiliconization of molten iron, but also can be used for dephosphorization of molten iron. When blast furnace slag is used as a desiliconizer for hot metal, powdered blast furnace slag and iron ore should be blown into the hot metal. At this time blast furnace slag unit consumption of 10 ~ 20kg / t iron, iron ore unit consumption of 4kg / t iron. Hot metal by high