Calcined alumina, also known as aluminum oxide, is a high-purity, white crystalline substance that is produced by heating aluminum hydroxide to a high temperature. During the calcination process, the aluminum hydroxide undergoes a series of chemical reactions that result in the removal of water and the transformation of the material into aluminum oxide.
Calcined alumina is widely used in a variety of industrial applications, including glass, high alumina cement, tiles, fritz and grits, refractories, ceramics, polishing, abrasives, electronics, fused alumina and biomedical engineering industries, due to its unique properties such as high temperature stability, electrical insulation, abrasion resistance, and chemical resistance.
At Mineore Enterprises, we are committed to providing our customers with high-quality calcined alumina that meets their specific requirements and exceeds their expectations. We achieve this by implementing strict quality control measures throughout the production process and adhering to industry standards. Our calcined alumina is produced using only the highest quality raw materials, which are carefully sourced and tested to ensure purity and consistency. The production process involves precise control of temperature and pressure, and we regularly monitor and test the product to ensure that it meets our strict quality standards.
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Typical Chemical Analysis
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Parameters
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Minimum
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Maximum
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Al₂O₃
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99.3%
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99.8%
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LOI at 1100°C
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0.02%
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1%
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SiO₂
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0.01%
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0.02%
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TiO₂
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-
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0.05%
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P
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-
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0.002%
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(Specifications can be customized as per customer's requirement)
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High temperature stability: Calcined alumina has a high melting point and is able to withstand high temperatures, making it an ideal material for use in high-temperature applications such as refractories and thermal insulation.
High electrical insulation: It has excellent electrical insulation properties, which makes it useful in the manufacturing of electronic components such as insulators, capacitors, and resistors.
Abrasion resistance: It is a hard and abrasion-resistant material, which makes it suitable for use in applications where materials are subject to wear and tear, such as in the production of ceramics, abrasive papers, and polishing compounds.
Chemical resistance: Calcined alumina is resistant to many chemicals, including acids, alkalis, and organic solvents. This makes it useful in the production of chemical-resistant coatings, linings, and composites.
High purity: It is a highly pure material, with low levels of impurities. This makes it suitable for use in applications where purity is critical, such as in the production of high-purity ceramics and pharmaceuticals.
Thermal conductivity: It has good thermal conductivity, which makes it useful in applications where heat needs to be transferred, such as in heat exchangers and thermocouples.
Biocompatibility: It is biocompatible, meaning that it is not toxic to living tissue. This makes it suitable for use in medical implants, dental materials, and other biomedical applications.
We supply high-purity Calcined Alumina in multiple grades and mesh sizes including 100 mesh, 325 mesh fine calcined alumina powder to suit applications in ceramics, tiles, glass, glaze and frit, high alumina cement, refractories, polishing compounds, electronics, and specialty chemicals. Custom particle sizes and bulk packaging are available to meet industrial requirements. Please feel free to discuss your requirements with us.
We are bulk suppliers and exporters of high-purity Calcined Alumina sourced from leading Indian manufacturers, offering competitive pricing and flexible payment terms. Our ISO 9001:2015 certified operations ensure consistent quality and reliable delivery for industrial buyers worldwide.
India is a competitive source for high-quality material, with access to advanced processing facilities and established logistics networks. Partnering with a trusted Indian supplier ensures consistent product specifications, competitive pricing, and reliable export capabilities.
This versatile mineral is used in a range of industries, including:
Ceramics – advanced ceramics, tiles, glaze, frit and spark plugs
Glass Manufacturing – technical glass, optical glass, float glass and other high-strength applications
High Alumina Cement – our calcined alumina is core raw material for HAC producers
Refractories – kiln furniture, furnace linings, and crucibles
Polishing Compounds – optical glass, metal, and semiconductor wafers
Electronics – insulating substrates and electrical components
Specialty Chemicals – catalyst carriers and filler applications
Yes. We offer tailored grades, mesh sizes, and packaging formats such as HDPE bags, jumbo bags, and palletized loads, customized to meet your technical and export requirements.
Absolutely. Our high quality minerals shipped to clients across Asia, Europe, North America, and the Middle East, serving industries such as ceramics, glass, electronics, refractories, and polishing.
