Calcined Dolomite
High-temperature decomposed calcium magnesium oxide (\(CaO \cdot MgO\)), commonly known as doloma or roasted dolomite, supplied for steelmaking, refractory bricks, and metallurgical fluxes.
Available Forms in this Mineral:
Product Overview
Calcined dolomite is produced by thermal calcination of natural dolomite in industrial kilns, driving off carbon dioxide (\(CO_2\)) to yield a reactive compound of calcium oxide and magnesium oxide (\(CaO \cdot MgO\)).
In primary steelmaking (BOF and EAF), it is charged directly into the slag. The presence of \(MgO\) saturates the molten slag, minimizing the chemical erosion of magnesite and dolomite refractory linings in furnace walls and ladles.
Technical Specifications
| Chemical Composition | Calcium Magnesium Oxide (CaO . MgO) |
|---|---|
| Available Forms | Calcined Lumps (10–50 mm) and Calcined Fines/Powder |
| Appearance | Light grey to white porous lumps / granules |
| Reactivity / Slaking | Available on request per target furnace process |
| Packaging | Moisture-barrier HDPE lined 50 kg bags, 1 MT jumbo bags, or bulk container dispatch |
| Dispatch Unit | F13-14, RIICO Industrial Area, Pindwara, Sirohi, Rajasthan |
| Quality Testing | Chemical assay (CaO, MgO, LOI) provided with dispatch documentation |
* Exact LOI (loss on ignition) and active oxide percentages are verified per kiln batch. Detailed analysis available on request.
Typical Industrial Applications
- Steelmaking (EAF & BOF): Slag conditioning agent to saturate furnace slag with MgO and extend refractory lining campaigns.
- Refractory Brick Production: Raw component in manufacturing fired and resin-bonded doloma and magnesia-doloma refractories.
- Effluent & Acid Neutralization: Neutralizing acidic industrial effluents with high acid-binding capacity.
- Non-Ferrous Metallurgy: Fluxing additions in copper, lead, and zinc smelting furnaces.
Moisture Protection & Logistics
Due to the reactive nature of unslaked calcium and magnesium oxides, material is bagged in heavy-duty HDPE sacks with polyethylene liners or sealed big bags to prevent atmospheric hydration. Dispatches are coordinated via covered trucks from Pindwara, Rajasthan.