Reburned Magnesia 0–20mm: High-Performance Refractory Material for Industrial Applications

Reburned Magnesia 0–20mm is a premium refractory raw material produced from high-purity magnesite through high-temperature calcination and reburning processes. This product is characterized by high magnesium oxide (MgO) content, excellent thermal stability, superior refractoriness, strong resistance to slag attack, and outstanding mechanical strength. Due to these characteristics, reburned magnesia is widely used in steelmaking, cement manufacturing, non-ferrous metallurgy, glass production, and other high-temperature industrial applications.

The production process of reburned magnesia begins with carefully selected natural magnesite ore. The ore undergoes calcination at elevated temperatures to remove carbon dioxide and impurities, followed by reburning at temperatures generally above 1600°C–2000°C. This high-temperature treatment increases crystal density and enhances physical and chemical properties, resulting in a highly stable and durable material suitable for demanding industrial environments.

Reburned Magnesia 0–20mm is available in a particle size range from 0 to 20 millimeters, making it suitable for a variety of refractory production processes and applications. The controlled particle distribution allows for excellent packing density and optimized performance in refractory mixes. The material can be used directly or further processed according to specific industrial requirements.

Main characteristics of Reburned Magnesia 0–20mm include:

• High MgO content for superior refractoriness and heat resistance
• Excellent resistance to chemical corrosion and slag penetration
• High bulk density and low porosity
• Strong thermal shock resistance
• Stable chemical composition and consistent quality
• Excellent mechanical strength under high-temperature conditions
• Suitable for various refractory manufacturing processes
• Long service life in demanding industrial applications

Typical chemical composition may include:

• MgO: 90%–98%
• CaO: ≤3.0%
• SiO₂: ≤2.5%
• Fe₂O₃: ≤1.5%
• Al₂O₃: ≤1.0%

Typical physical properties:

• Bulk Density: 3.0–3.4 g/cm³
• Apparent Porosity: Low
• Particle Size: 0–20mm
• Refractoriness: >2000°C

Applications of Reburned Magnesia 0–20mm are extensive across multiple industries. In the steel industry, it serves as a key raw material for producing magnesia bricks, unshaped refractories, converter linings, electric arc furnace linings, and ladle refractory materials. The excellent resistance to high temperatures and basic slags significantly improves furnace performance and extends service life.

In cement manufacturing plants, reburned magnesia is used in rotary kiln refractory linings and other heat-resistant structures. Its durability under severe operating conditions helps maintain production efficiency and reduce maintenance frequency.

In non-ferrous metallurgy industries such as copper, aluminum, nickel, and zinc production, reburned magnesia provides reliable protection against high-temperature corrosion and mechanical wear. It is also commonly used in glass furnaces and ceramic production facilities where stable refractory performance is critical.

The 0–20mm particle size range offers flexibility for refractory manufacturers and industrial users. Fine particles improve filling characteristics, while larger particles contribute structural strength and thermal stability. This balanced particle distribution ensures better material performance and manufacturing efficiency.

Quality control is an important aspect of reburned magnesia production. Advanced manufacturing technologies and strict inspection procedures ensure stable chemical composition, accurate particle sizing, and reliable physical properties. Every production batch can be tested according to international standards to meet customer requirements and industrial specifications.

Packaging options commonly include moisture-resistant bags, jumbo bags, or customized packaging solutions based on transportation and storage needs. Proper storage in dry environments helps maintain product quality and prevents contamination.

As industrial processes continue to demand higher efficiency and durability, Reburned Magnesia 0–20mm remains a reliable choice for refractory manufacturers and high-temperature industries worldwide. Its excellent thermal properties, chemical stability, and cost-effective performance make it an essential material for modern industrial operations.