Calcined Alumina Description
Calcined Alumina, produced through high-temperature heating to remove chemically bound water and impurities, is prized for its exceptional purity exceeding 99%. This process enhances its suitability for diverse industrial applications. Known for its chemical inertness, calcined alumina resists corrosion in aggressive environments and maintains stability at high temperatures. Its hardness and durability make it a preferred abrasive for polishing and grinding tasks. Additionally, it serves as a vital component in ceramics, providing strength, hardness, and thermal resilience. Used widely in refractory materials, electrical insulation, catalyst supports, and even water treatment, calcined alumina exemplifies its versatility across various industrial sectors.
Calcined Alumina Specifications
|
|
MN/Y
|
MN/Y-407
|
DN-6
|
DN-440
|
DN-430
|
DN-420
|
DN-206
|
|
Al2O3 (%)
|
≈99.0
|
≈99.0
|
≈99.3
|
≈99.3
|
≈99.3
|
≈99.3
|
≈99.3
|
|
Na2O (%)
|
0.4 - 0.9
|
0.6 - 1.1
|
≤0.5
|
≤0.5
|
≤0.5
|
≤0.5
|
≤0.5
|
|
Specific Surface Area (m2/g)
|
0.15 0.35
|
0.6 - 0.11
|
0.2 - 0.5
|
0.3 - 0.7
|
0.3 - 0.7
|
0.3 - 0.7
|
0.5 - 0.9
|
|
Particle Size Distribution d50 (µm)
|
≈70
|
7 - 10
|
≈80
|
12 - 28
|
10 - 20
|
6 - 10
|
6 - 8
|
|
Particle Size Distribution d90 (µm)
|
≈120
|
15 - 30
|
≈200
|
70 - 100
|
50 - 80
|
10 - 60
|
44489
|
|
Primary Crystal Size (µm)
|
≈15
|
≈7
|
≈6
|
≈6
|
≈6
|
≈6
|
≈6
|
|
Oil Absorption (ml/100g)
|
≈60
|
≈18
|
≈43
|
≈30
|
≈25
|
≈20
|
≈20
|
|
Cutting Effect
|
9
|
8
|
9
|
8
|
8
|
7
|
7
|
|
Polishing Effect
|
1
|
3
|
1
|
2
|
3
|
3
|
3
|
*For more information, please contact us.
Calcined Alumina Applications
1. Abrasives: Used in grinding wheels, sandpapers, and abrasive powders for polishing and surface preparation in metal fabrication, automotive, and construction industries.
2. Refractories: Incorporated into refractory bricks, castables, and shapes for furnace linings, kiln furniture, and crucibles due to their high-temperature stability and resistance to thermal shock.
3. Ceramics: Essential in ceramic production for enhancing strength, hardness, and thermal properties in ceramic bodies, glazes, and specialty ceramics.
4. Electrical Insulation: Used as an insulating material in electrical components and systems where high dielectric strength and thermal stability are required.
5. Catalyst Support: Applied as a catalyst support material in chemical processes and catalytic converters due to its inertness and high surface area.
6. Water Treatment: Utilized in water purification systems for adsorption and filtration of contaminants, improving water quality.
7. High-Temperature Applications: Employed in industries requiring materials resistant to high temperatures, such as aerospace, automotive, and manufacturing sectors.
8. Cosmetics and Personal Care: Included in cosmetic formulations and toothpaste as a mild abrasive for polishing and cleansing properties.
9. Refractory Coatings: Used as coatings or additives to enhance thermal insulation and corrosion resistance in various industrial processes.
10. Chemical Processing: Used in abrasive applications and as a catalyst in chemical reactions requiring stable and inert materials.
Calcined Alumina Packaging
Our Calcined Alumina is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
