Dephosphorization agent, refining agent and dephosphorization method of molten iron

摘要

A molten iron dephosphorizer containing 2 to 20% by mass of Al ₂ O ₃ , the balance being calcium ferrite and impurities, and a (Al ₂ O ₃ mass%) / (CaO mass%) ratio of 0.04 to 0.5. The refining agent containing this dephosphorization agent is added into the converter, and dephosphorization treatment of molten iron is performed.