Quick Lime manufacturing involves 4 major stages:

1. Limestone Selection (High Purity)

Best limestone quality:

• 85–95% CaCO₃
• Low silica (SiO₂)
• Low magnesium (MgO)
• Low impurities

High purity ensures higher CaO output, better reactivity, and superior performance.

2. Calcination in Lime Kiln

Limestone is fed into:

• Vertical Shaft Kiln (VSK)
• Rotary Kiln
• Twin Shaft Kiln
• Annular Shaft Kiln

Temperature required: 900°C to 1100°C

At this temperature, limestone decomposes and releases CO₂.

3. Formation of Quick Lime (CaO)

After CO₂ is removed, the remaining product is:

• White/grey lumps
• Highly alkaline
• Reactive
• Heat‐generating

This is Quick Lime.

4. Cooling, Sorting & Packing

Quick Lime is:

• Cooled to room temperature
• Crushed into required sizes
• Screened for quality
• Packed in HDPE or jumbo bags

Finally delivered to industrial users.