Calcined Bauxite
Zhengzhou Caihua Kiln Masonry Installation Co.,Ltd. is professional manufacturer of fire bricks, Mortar, Pre-cast, Pre shape, Insulation products, Castable, Functional Products for Iron & Steel, Cement, Glass, Power & Petrochemical Industries. We have many types of calcined bauxite, including high purity calcined bauxite, rotary kiln bauxite, rotary kiln calcined bauxite. Its thermal stability, high mechanical strength and resistance to molten slags make Calcined Bauxite an ideal raw material in the production of many refractory, abrasive and specialty product applications.
Why Choose Us?
Rich Experience
CH Refractories with 40 years production and 15 years exporting experience to provide customers full supporting.
Professional Team
The company has 120 employees, including 20 professional engineers, who can provide professional product design and technical support.
Advanced Equipment
The company is equipped with two 1000-ton brick machines, ten 630-ton brick machines, two 180-meter high-temperature tunnel kilns, as well as a complete set of equipment for testing physical and chemical properties.
Broad Market
Products are exported to Germany, Korea, Indonesia, Pakistan, Malaysia, Saudi Arabia, Egypt, Russia, Uzbekistan and other countries.
Rotary Kiln Calcined Bauxite
The content is from 60% Al2O3 to 88% Al2O3. Size is customized according to customers requirements, generally including 325 mesh, 200 mesh, 0-1/1-3/3-5mm.
Rotary Kiln Bauxite
Rotary Kiln Bauxite is calcined bauxite that with 75%-90% Al2O3 content. It is mainly used for produce refractory castable, fire bricks. The standard size can be grain or powder
High Purity Calcined Bauxite
The High Purity Calcined Bauxite is a high-quality mineral processed by a high-temperature calcination process. Its main component is alumina (Al₂O₃), with a content usually between 75% and 90%.
Specifications of Calcined Bauxite
|
Black color bauxite date sheet |
||||||
|
NO |
Items |
RK70 |
RK75 |
RK80 |
RK85 |
RK87 |
|
1 |
Al2O3 |
≥70 |
≥75 |
≥80 |
≥85 |
≥87 |
|
2 |
Fe2O3 |
≤2 |
≤2 |
≤2 |
≤1.8 |
≤1.5 |
|
3 |
TiO2 |
/ |
/ |
≤4 |
≤4 |
≤4 |
|
4 |
CaO+MgO |
≤0.6 |
≤0.6 |
≤0.5 |
≤0.4 |
≤0.4 |
|
5 |
K2O+Na2O |
≤0.6 |
≤0.6 |
≤0.5 |
≤0.4 |
≤0.4 |
|
6 |
Bulk density |
2.95-3 |
2.95-3 |
3.1-3.15 |
3.2-3.25 |
3.3-3.35 |
|
7 |
Water Absorption |
≤5 |
≤5 |
≤5 |
≤3 |
≤3 |
|
Cream Color Bauxite Date Sheet |
||||||
|
NO |
Items |
RK70 |
RK75 |
RK80 |
RK85 |
|
|
1 |
Al2O3 |
70-75 |
75-80 |
≥80 |
≥85 |
|
|
2 |
Fe2O3 |
≤2 |
≤2 |
≤2 |
≤2 |
|
|
3 |
TiO2 |
/ |
/ |
≤4 |
≤4 |
|
|
4 |
CaO+MgO |
≤0.6 |
≤0.6 |
≤0.5 |
≤0.4 |
|
|
5 |
K2O+Na2O |
≤0.6 |
≤0.6 |
≤0.5 |
≤0.5 |
|
|
6 |
Bulk density |
≥2.75 |
≥2.8 |
≥2.9 |
≥2.9 |
|
|
7 |
Water Absorption |
≤5 |
≤5 |
≤5 |
≤5 |
|
Characteristics of Calcined Bauxite
High Hardness and Durability: Calcined bauxite has a high hardness rating, making it an extremely durable material that can withstand wear and tear. Its high hardness also makes it ideal for use in anti-skid road surfaces, where it provides excellent traction and improves safety.
Chemical Stability: Calcined bauxite is a chemically stable material that is resistant to corrosion and erosion. It does not react with water or other chemicals, making it ideal for use in harsh chemical environments.
Heat Resistance: Calcined bauxite has a high melting point, making it an ideal material for use in high-temperature applications. It can withstand temperatures of up to 1770°C, making it ideal for use in the production of refractory bricks and other high-temperature materials. The heat resistance of calcined bauxite also makes it an ideal material for use in the welding industry, where it is used as a coating for welding electrodes.
Low Thermal Expansion: Calcined bauxite has low thermal expansion, making it an ideal material for refractory applications. Its low thermal expansion ensures that refractory materials made from calcined bauxite maintain their shape and size at high temperatures, providing reliable performance.
Abrasive Properties: Calcined bauxite's abrasive properties make it an ideal material for use in the manufacture of sandpaper, grinding wheels, and polishing compounds. The abrasive grains of calcined bauxite are hard and durable, allowing them to remove material quickly and efficiently.
Aluminum Production: Calcined Bauxite is the key raw material in the smelting of aluminum.
Refractories: Calcined Bauxite's heat-resistance can reach 1780°C while maintaining chemical stability and mechanical performance, because of its high alumina and low iron content (Al2O3 ≥ 48% and low Fe2O3). It is widely used for kiln linings and bricks, molds, mortars, and precision castings. Calcined Bauxite grog can also be melted in an electric arc furnace at 2000°C - 2200°C and then further processed into aluminum silicate refractory fibers, which can be made into fiber blankets, plates, and cloth.
Abrasives: Calcined Bauxite is crushed, graded by size, and used for a wide variety of abrasive applications.
Cement: Calcined Bauxite provides aluminum in specialty calcium aluminate cements, which serve applications such as: refractory concretes, where strength is required at high temperatures; construction concretes, where rapid strength development is required, even at low temperatures; and as a protective liner against microbial corrosion, such as in sewer infrastructure.
Chemicals: Particularly for all kinds of aluminum compounds.
Ceramics: Calcined Bauxite is used in the production of a variety of structural and functional ceramic products, such as catalytic substrates, electronic ceramics (substrates, pressure sensors) and spark plugs.
Pavement and Flooring: Wherever a very hard and long-lasting mineral is required to enhance safety through high-friction, non-slip performance.
Storage Conditions of Refractory Cement
Store in a cool, dry area, away from heat and out of direct sunlight.
Keep in an original container and away from oxidising agents and foodstuff containers.
Certificate
Packaging & Shipping
We're well-known as one of the leading calcined bauxite manufacturers in China. Please rest assured to buy customized calcined bauxite at competitive price from our factory. Contact us for more cheap products.
metallurgical mould coatings, metallurgical sound absorbing agents, fire brick with low porosity