Grinding, blasting, and cutting processes, as well as the production of refractory materials, all employ alumina. We are proud to be the world's largest fused alumina producer and supplier. It is also known as fused aluminium oxide
Alumina is found in the regions of Odisha, West Bengal, Kerala, Uttar Pradesh, Maharashtra and Tamil Nadu.
There are several physical properties of alumina. It is high in hardness with the value of 9 on Mohs scale. It has sharp-edged grains, a high load bearing capacity, strong shock resistance, and thermal and chemical stability, besides their superior hardness.
Alumina, or aluminium oxide (aluminum oxide), is better known in the mineral world as corundum with the chemical formula Al2O3
Alumina has widespread usage in several industries in refractories, sandblasting and abrasives to mention a few. Grinding, machining, blasting, cutting, and the manufacturing of shaped and unshaped refractory materials all employ fused aluminium oxide grits.
We offer innovative, brilliant quality alumina mineral with both macro and micro sized that could be used for a wide range of applications. We can add refining procedures to our regular production of alumina mineral to suit the bespoke requirements of various industries and application domains.
These various industries are ceramics, sand casting, tiles, enamels, laminates & paints, industrial coatings, abrasives, blasting, concrete & resin components, refractories, insulators and heat conductive to name a few.
According to different requirements, five series of products have been formed, including dry pressing, hot die casting, refractory, casting and setting, structural ceramic granulator, etc. It can be widely used in electronic equipment, structural ceramics, refractories, wear-resistant materials, polishing materials and other industries.
Calcined alumina can be used in the polishing of different alumina products(mainly used in middle, fine polishing).It is also widely used in high-class aluminium refractory material, unshaped refractory materials, high aluminium ceramic product and advanced coating, etc, . Item Al2o3 % Na2o % Sio2 % Fe2o3 % D50 A4m 99.8 0.1 0.05 0.02 3.1
Alumina (Al2O3), the industrial Al2O3 is prepared from alumina (Al2O3, 3H2O) and hard alumina, and the Al2O3, which is high in purity, is usually prepared by chemical methods. Al2O3 has many isomorphic crystals, and there are currently more than 10 known types, mainly three types of crystal, namely gamma-al2o3, beta-al2o3, alpha-al2o3.Which structure is different, with different properties in high temperature above 1300 s almost entirely into alpha Al2O3.
Aluminum oxide Alumina powder for Electric vacuum tube shell ceramic Al2O3
item value
Classification ALUMINA
CAS No. 1344-28-1
Other Names Alumina
MF Al2O3
EINECS No. 215-691-6
Grade Standard Electron Grade, Industrial Grade, Reagent Grade
Purity 99.5%
Appearance White powder
Application electronic ceramics
Color White
Grade Industrail Grade
Density 3.5 g/cm3
Melting point 2054
Boiling Point 2980
Molecular Weight 101.96
Shape Ionische
Water Solubility Hard
Packing 25 Kg Pp Bag or plastic barrel
Sample Availiable
Activated alumina is a versatile material with a wide range of applications. Here are some additional details:
## Production Process
1. Bauxite mining: Activated alumina is typically produced from bauxite, a type of rock that contains aluminum hydroxide.
2. Refining: The bauxite is refined to produce alumina (Al2O3).
3. Activation: The alumina is then activated through a process of heating and treating to increase its surface area and adsorption capacity.
## Properties
1. Surface area: Activated alumina has a high surface area, typically ranging from 200-400 m2/g.
2. Pore size: The pore size of activated alumina can vary depending on the application.
3. Chemical stability: Activated alumina is chemically stable and resistant to corrosion.
4. Thermal stability: Activated alumina is thermally stable and can withstand high temperatures.
## Applications
1. Air purification: Activated alumina is used in air purification systems to remove impurities and contaminants.
2. Water treatment: Activated alumina is used in water treatment systems to remove impurities and contaminants.
3. Gas separation: Activated alumina is used in gas separation applications, including the separation of oxygen and nitrogen.
4. Catalysis: Activated alumina is used as a catalyst or catalyst support in various chemical reactions.
## Benefits
1. High efficiency: Activated alumina is highly efficient in removing impurities and contaminants.
2. Long lifespan: Activated alumina has a long lifespan and can be reused multiple times.
3. Low maintenance: Activated alumina requires low maintenance and can be easily cleaned and regenerated.
4. Cost-effective: Activated alumina is a cost-effective solution for various applications.
## Industries
1. Chemical industry: Activated alumina is used in the chemical industry for various applications, including catalysis and adsorption.
2. Petroleum industry: Activated alumina is used in the petroleum industry for various applications, including gas separation and drying.
3. Pharmaceutical industry: Activated alumina is used in the pharmaceutical industry for various applications, including purification and filtration.
4. Water treatment industry: Activated alumina is used in the water treatment industry for various applications, including adsorption and filtration.
Fire clay & High Alumina bricks are special type of brick which are form of Refractory ceramic material. It is used for inner surface lining of Boiler, furnace, kiln, fireplaces & fireboxes.
Quality of Bricks:
We offer various quality bricks are IS-6, IS-8, PI - 30% to 90% Alumina offering high temperature resistance of 1100 C to 1700 C.
Alumina is a chemical compound that is formed of aluminum and oxygen with the formula Al2O3.It is called Aluminium Oxide. It has melting and boiling points of 2072 C and 2977 C, respectively. Aluminum Oxide has a density of 3.95 g/cm3.
Why is Alumina powder used in ceramics?
Although Alumina is an electrical insulator, it has a high heat transmission for a ceramic. Water does not melt Alumina. So, it is used in ceramics.
What are the specifications of Alumina powder?
Specifications of Aluminum
Serial No Chemical Descriptions Percentage
1 Al2O3 99%
2 Fe2O3 0.05%
3 Mesh +200
How is alumina powder made for ceramics?
Alumina are manufactured in ceramics from white particles or a smooth dense powder purified from bauxite. Alumina is a strong, long-wearing industrial ceramic which can only be produced via diamond cutting.
What are the Uses in others?
Alumina is a great element for bricks, plastics, polymers, and heavy clayware since it is chemically stable. It is also a popular component in sandpaper and a cost-effective alternative to industrial diamonds.
What are the Side effects?
Although Alumina is a beneficial metal, it is a skin irritant and it is also harmful for the environment. Itâ??s definitely uncomfortable in some cases
Alumina, synthetically produced aluminum oxide, Al2O3, a white or nearly colourless crystalline substance that is used as a starting material for the smelting of aluminum metal. It also serves as the raw material for a broad range of advanced ceramic products and as an active agent in chemical processing
White aluminum oxide is electrically fused in the furnace with high grade bayer processed alumina as raw material. It has high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and alkali resistance, good thermal stability. Abrasives tools made of it are suitable for grinding high-speed, high carbon steel , excite also can be used as materials for grinding and polishing, precision casting, spaying and coating, medium body for chemical industry, special ceramics and high-grade refractory materials, etc.
Brown fused alumina is fused and crystalized under high temperature from a mixture of bauxite and other raw materials. It is characterized by its high hardness, good toughness and sharp shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel, general purpose alloy steel, annealed malleable cast iron and hard bronze, etc. It also can be used as refractory materials.
Silica sand, also known as quartz sand, is a naturally occurring granular material primarily composed of silicon dioxide (SiO) in the form of quartz. It is renowned for its high purity, uniform grain size, and various physical and chemical properties,
Aluminate Cement is a light-colored premium quality Calcium Aluminate Cement process in Rotary Kiln using the best raw materials. Calcium Alumina Cement gives early strength and improves refractory and physical properties like abrasion resistance providing a stable cement matrix. Alumina Cement is recommended in refractory applications and concrete combining mechanical performance with ease of installation.
Application areas
Heavy-duty industrial floors â?? Warehouse flooring area
Oil well cementing
Replacement of road slabs
Transfer bays area
Construction Chemicals
Mortars and Repair compounds
Alumina ceramics is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness.
High purity alumina ceramics are ideal for environments where resistance to wear and corrosive substances are required.
Alumina ceramic has excellent thermal stability, which means that it is widely used in areas where resistance to high temperatures is essential.
Alumina ceramic is the material of choice for alumina wear parts. The proven wear and heat resistance of alumina wear parts makes them ideal for the manufacture of wear-resistant components.
Alumina has a high melting point, high hardness, although mechanical strength is reduced at temperatures above 1000 C. Due to the relatively large coefficient of thermal expansion, thermal shock resistance is reduced.
Alumina is an electrically insulating material, with a high electrical resistivity, increasing with purity.
Good chemical stability of alumina leads to high corrosion resistance. It is insoluble in water and only slightly soluble in strong acid and alkaline solutions.
Testing has shown that the low chemical solubility of alumina ceramics components makes them highly resistant to chemical corrosion.
This is what makes high purity alumina the material of choice for components in a wide range of industrial applications.
Alumina Ceramics are generally white and the color is derived from either the sintering additives or impurities in the raw materials.
We make and supply alumina ceramic grinding media, abrasion ceramic lining and alumina ceramic parts & components.
Allied's alumina powders are made to the highest quality specifications and are used for the final polishing of metallographic specimens. Accurately controlled purity levels and particle size distribution assure optimum polishing results. Mix with DI water to produce a liquid slurry. 0.05 particle type/shape is Gamma; 0.3 and 1.0 are Alpha.
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Ashapura is India's largest producer of Advanced Refractory Materials with a versatile portfolio of Castables, High Alumina Cement, Calcined Bauxite and Fused Aluminas. High-temperature Calcined Aluminous Clays (Chamotte & Mullite) are used to produce Alumina Refractories for steel, cement and metal industries.
Besides having a dominant position in the Indian market, Ashapura is a preferred supplier of refractory raw materials & products in Europe, Middle East and South East Asia.
Standing
India's largest producer of refactory.
Applications
Abrasives Refactories Foundries Grinding Road Surfacing
