What is the role of limestone in steel production? – InterviewSolution

1.	What is the role of limestone in steel production?
Answer» Limestone (CaCO₃) is used to remove silica impurity (SiO₂) from iron ore. Limestone acts as a flux. It mixes with silica to give slag (CaSiO₃). CaCO₃ (flux) + SiO₂ (impurity) QQCaSiO₃ (slag)

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