Raw Material Granular mix  is a high-performance basic refractory material produced by mixing two high-quality raw materials—tabular alumina (Al₂O₃) and sintered magnesia (MgO)—in specific ratios followed by high-temperature processing. It combines the advantages of both materials, delivering superior performance compared to pure alumina-based or magnesia-based materials alone.

Key Features & Advantages

• Excellent Thermal Shock Resistance: The incorporation of tabular alumina mitigates the high thermal expansion and susceptibility to spalling inherent in magnesia, enabling the material to withstand severe thermal cycling without cracking.
• High Hot Mechanical Strength: The interlocking platelet structure of tabular alumina provides robust mechanical strength, preventing deformation and softening under high temperatures.
• Superior Slag Corrosion Resistance: Combines the resistance of alumina to acidic slags and magnesia to basic slags, offering well-rounded protection against a wide range of molten slags, particularly alkaline slags in cement rotary kilns and non-ferrous metal slags.
• High Volume Stability and Abrasion Resistance: The formation of a dense spinel phase during firing results in improved structural density, excellent volume stability, and outstanding resistance to abrasion.

Primary Applications

This blend is typically used to manufacture Re bonded Magnesia-Alumina Spinel Brick or is applied directly as a repair mix or castable monolithic. It is widely used in critical zones of industrial furnaces, including:

• Cement Rotary Kilns: Primarily in the transition zone and preheating zone; this is a classic and critical application.
• Ladles: For slag lines, sidewalls, and bottoms, especially in secondary refining ladles.
• Non-Ferrous Metal Smelting Furnaces: Linings for furnaces processing copper, nickel, etc.
• Glass Melting Furnaces: Regenerator checker works and other areas.
• Lime Kilns and Waste Incinerators and other high-temperature, corrosive environments.