Quick Lime (Calcium Oxide – CaO)

Quick Lime is the main lime used in steel plants.
It acts as a flux in steelmaking and helps remove impurities like silica, sulfur, and phosphorus from the molten metal.

Why Quick Lime Is Used in Steel Manufacturing?

• Removes impurities

• Controls slag chemistry

• Improves steel quality

• Reduces energy consumption

• Protects furnace lining

Other Limes Used in Steel Plants

1. Dolomitic Lime (CaO + MgO)

Used when magnesium is needed and for better refractory protection.

2. Hydrated Lime (Ca(OH)₂)

Used in pollution control systems like flue gas desulfurization.

3. Limestone (CaCO₃)

Used in sinter plants as a raw material.