MOLTEN IRON DEPHOSPHORIZING AGENT, REFINING AGENT, AND DEPHOSPHORIZATION METHOD

摘要

A molten iron dephosphorizing agent containing 2-20 mass% Al₂O₃, the balance being calcium ferrite and impurities and the (Al₂O₃ mass%)/(CaO mass%) ratio being 0.04-0.5. Dephosphorization of molten iron is performed by adding a refining agent comprising said dephosphorizing agent into a converter furnace.