Takayuki Maeda

1 Introduction Owing to the growing shortage of high-quality iron ore, the utilization of high-phosphorus iron ore has become an inevitable resource strategy in the ironmaking and steelmaking industries.[1-3] A subsequent problem is the increase in slag usage in traditional dephosphorization processes, which typically include hot metal dephosphorization and converter dephosphorization. This inevitably leads to increased costs and environmental burden.