TL;DR: Steel plants use quick lime (calcium oxide) as a flux: it binds phosphorus, sulphur and silicon impurities into the slag and helps purify the steel. Chemical & Mineral Industries Pvt. Ltd. (CMIPL) makes quick lime in Boranada, Jodhpur, Rajasthan, in six sizes from 25-75 mm lumps to 300 Mesh powder, at three lime kilns with a combined capacity of 1,200 TPD.

What quick lime does in steelmaking

In electric arc furnaces and basic oxygen furnaces, lime is used as a fluxing agent. It removes phosphorus, sulphur and silicon impurities from the steel, improves slag fluidity, enhances metal purity and reduces energy consumption. See the steel industry page.

Quick lime in non-ferrous metallurgy

In metal refining and smelting, quick lime acts as a flux that helps remove impurities such as sulphur and silica, enhances slag formation, improves thermal efficiency and contributes to higher metal recovery. See the metallurgy industry page.

CMIPL quick lime grades

• QL 25-75 mm: lumps.

• QL 5-25 mm: pebbles.

• QL powder 0-3 mm, 200 Mesh and 300 Mesh: fine and pulverized grades.

Tell CMIPL's team how your furnace is charged and what size your plant handles, and they will advise the grade. See the quick lime product page.

What steel plants should ask a lime supplier

• Reactivity: how fast the lime forms slag, so ask for the reactivity and available CaO of the grade.

• Impurities: the sulphur and phosphorus levels in the lime.

• Fines and moisture: too many fines cost furnace efficiency, and moisture slakes lime in transit.

• Supply: kiln capacity and dispatch that keep the furnace running.

Ask for a technical data sheet for each point before you order.

Made in Rajasthan at CMIPL's own kilns

CMIPL operates three lime kilns in Boranada, Jodhpur, with a combined capacity of 1,200 TPD. In 2014 it commissioned India's first pet-coke fired Twin-D lime kiln, a 300 TPD unit engineered by Cimprogetti S.P.A. For other quick lime supply from the state, see quick lime manufacturers in Rajasthan.

How to order

Pricing is quoted per order, based on grade, volume and delivery. Contact CMIPL with your furnace type, preferred size and monthly requirement to request technical data sheets and discuss supply.

Frequently asked questions

Why do steel plants use quick lime?

Quick lime is a fluxing agent. It binds phosphorus, sulphur and silicon impurities into the slag, improves slag fluidity and helps purify the steel.

Which quick lime sizes does CMIPL supply?

QL 25-75 mm, QL 5-25 mm, QL powder 0-3 mm, 200 Mesh and 300 Mesh.

Where does CMIPL make quick lime?

At three lime kilns in Boranada, Jodhpur, Rajasthan, with a combined capacity of 1,200 TPD, including India's first pet-coke fired Twin-D lime kiln.

Is quick lime used in non-ferrous metallurgy too?

Yes. It is used as a flux in refining and smelting to remove impurities such as sulphur and silica, to form slag and to improve metal recovery.

What should I ask a quick lime supplier for steel?

Ask for reactivity and available CaO, sulphur and phosphorus levels, the share of fines, how moisture is controlled in transit, and the supplier's capacity.

How is quick lime priced?

CMIPL does not publish fixed prices. Each order is quoted based on grade, volume and delivery.

Last updated: 2026-10-30