Calcined Alumina - Product
Calcined Alumina
Calcined Alumina, also known as calcined aluminum oxide, is a high-purity, heat-treated form of alumina produced by the calcination of aluminum hydroxide. This process involves heating the material to a high temperature in a rotary kiln or furnace to remove water and convert it to a more stable, anhydrous form. Calcined Alumina is widely used in various industrial applications due to its excellent hardness, high melting point, and chemical stability.
- Product Category: Abrasive & Material
- Key Features:
- High Purity: Typically contains over 99% aluminum oxide, providing a high-quality material suitable for demanding applications.
- Thermal Stability: Maintains stability at high temperatures (up to 2000°C), making it ideal for use in high-temperature environments.
- Hardness: Offers a Mohs hardness of approximately 9, making it suitable for abrasive and cutting applications.
- Chemical Resistance: Resistant to most acids and alkalis, ensuring durability and stability in aggressive chemical environments.
- Versatility: Can be used in a variety of forms, including powders, granules, and sintered products, depending on application requirements.
Applications:
Abrasives: Used as a raw material for manufacturing grinding wheels, cutting tools, and other abrasives for metal, ceramic, and stone processing.
Refractories: Employed in the production of refractory materials such as bricks and castables for high-temperature applications in furnaces, kilns, and reactors.
Catalysts: Utilized in catalytic converters and other chemical processing applications due to its high surface area and catalytic properties.
Ceramics: Applied in the production of advanced ceramics and ceramics components due to its hardness and thermal stability.
Electrical Insulation: Used in the manufacture of electrical insulators and substrates for high-voltage applications due to its excellent insulating properties.
Polishing: Employed as a polishing agent for metal, glass, and other materials to achieve a high-quality finish.
Technical Specifications:
Chemical Composition: Al₂O₃ (Aluminum Oxide) ≥ 99%
Purity: High purity with minimal impurities (Fe₂O₃ ≤ 0.1%, SiO₂ ≤ 0.1%)
Density: Approximately 3.9 g/cm³
Melting Point: ~2050°C
Particle Size: Available in various sizes from fine powders (sub-micron) to granules and coarse particles, customized based on application needs
Shape: Typically available as a fine powder or in granular form
Advantages:
High Purity and Quality: Ensures consistent performance and reliability in high-demand applications.
Thermal and Chemical Resistance: Performs well under extreme temperatures and in aggressive chemical environments, enhancing durability.
Versatility: Adaptable for a wide range of industrial applications, including abrasives, refractories, and catalysts.
Efficient Processing: Provides effective material removal, polishing, and insulation properties, improving productivity and performance.
Packaging: Available in 25 kg bags, 500 kg bulk bags, or as per customer specifications.
Storage:
Store in a dry, cool place. Ensure containers are tightly sealed to prevent contamination and moisture absorption.
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