Dead Burnt Magnesite

Dead Burnt Magnesite (DBM) is a high-purity, heat-treated form of magnesite (MgCO₃). It is produced by heating natural magnesite ore in a rotary kiln at temperatures above 1,500°C (2,732°F) to remove carbon dioxide. The resulting product is mainly composed of magnesium oxide (MgO), which is known for its exceptional refractoriness, chemical stability, and resistance to high temperatures.

Key Characteristics of Dead Burnt Magnesite:

1. High Refractoriness: DBM has a very high melting point and is highly resistant to thermal shock, making it ideal for high-temperature applications.
2. Magnesium Oxide Content: It contains over 90% MgO, which gives it its superior heat-resistance properties.
3. Low Reactivity: The process of "dead burning" reduces its reactivity, meaning it is more stable and less prone to reacting with other materials at high temperatures.
4. Density and Durability: DBM is dense and has a strong structure, contributing to its longevity in harsh environments.

Applications of Dead Burnt Magnesite:

• Refractory Materials: DBM is primarily used in the production of refractory bricks and linings for steel furnaces, kilns, and other high-temperature equipment.