High alumina castable is a refractory castable made of high alumina raw material with binder and aggregate in traditional ratio.On the basis of the preparation of high strength and high aluminum castable, the granule gradation is adjusted, different admixtures are added, cement dosage is reduced, performance is improved, medium temperature strength and softening temperature under load are increased, thermal conductivity is reduced, and thermal stability is good.The furnace body structure integrity is strong, the air tightness is better than the brick furnace, extends the furnace life, saves the furnace repair cost, the economic benefit is remarkable as the high aluminum refractory castable characteristic.
Janta Refractory Group is renowned as the flagship manufacturer and supplier of finest quality Refractory Castables. We have a capacity to manufacture 2000 MT/Month.
We are manufacturing Medium-High Purity Catabels, Low Cement Catables, Insulating Castables, etc.
It is precisely processed by our skilled professionals at our well equipped manufacturing unit using superior quality additives, binders and sophisticated technology. In order to retain its shelf life for long time period, we provide it in qualitative packaging material and at reasonable price.
Our Monolithics / Castable are in huge demands in the national as well as international markets for high efficiency. Known for resistant to high wear&tear, our castable provide long lasting excellent performance.
Refractory castables are produced from refractory aggregates, refractory powders, binders and other additives and can be used after adding appropriate water or other liquid. Refractory Castable isused as lining turning kiln, hot converter lining heat treatment furnace, furnaces of metallurgy industry, chemical industry, construction industry, and circulation part of furnaces.
Alumina hollow ball castable is a new type of high temperature insulation material, it is made of industrial alumina in the melting furnace made of the crystal, a-Al2O3 microcrystalline crystal. To alumina hollow ball as the main body, can be made into a variety of shaped products, the maximum temperature of 1800 , high mechanical strength of products for the general light products several times, while the bulk density is only half of corundum products.
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.
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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.
Manufacturer insulating light weight insulating refractory mortar castable is a kind of unshaped refractory made of granular and powdery material, in which add a certain amount of binder and water together. It has high mobility, is suitable for casting construction, and can be hardened without heating. Refractory castables consist of refractory aggregates, powders, binders, admixtures, water or other liquid materials. Generally in the use site, it is molded by pour, vibration or tamping method, and can be used as preforms. Refractory castables are mainly used in the metallurgical industry furnace, also in the petroleum, chemical, building materials, power and machinery industry furnace and thermal equipment.
We could offer you the best refractory castable as following:
1.High alumina castable.
2.low cement refractory castable.
3.corundum castable.
4.Self flowing refractory castable.
5.Corundum mullite castable.
6.Silicon carbide castable.
7.Zirconia Refractory Castable.
8.Lightweight insulation Refractory castable
Features and Advantages of refractory castable:
1. High refractoriness, High refractoriness under load.
2. High density, low porosity.
3. Good slag resistance and corrosion resistance.
4. High strength and wear resistance.
5. Good resistance to flake performance.
6. Good thermal shock stability.
7. Scouring resistance
8. Good hot strength.
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.
We are manufacturer & exporter of ceramic filters, high alumina bricks & castables, calcined petroleum coke, foundry ferro alloys, steel shots, ceramic tiles & sanitary wares. We have our own manufacturing plant at sez industrial premise.
Features:
Its primary crystal is very small. It has good filling property and sintering activity. Aqueous slurry has good thixotropic fluidity. It can improve the sintered density, flexural and compressive strength of castables at high temperature. It can also enhance the castbles¡¡¥ resistance to abrasion, corrosion and erosion.
Applications:
It can be used in castables of low cement, ultra low cement or no cement and shaped or unshaped refractory materials, etc
Main technical parameters for tm-nb series superfine activated alpha-alumina special for refractory castable:
Mullite refractory castable general use of mullite aggregate to as raw materials and configuration of a kind of low temperature in the insulation refractories, it is commonly used in the petrochemical industry tube furnace, light diesel oil, ethane cracking furnace lining, atmospheric and vacuum furnace and sulfur recovery device and steam boiler, tortoiseshell net heat insulation layer, two barrel and pipe insulation monolayer, and other industrial furnace door, see the fire hole, observation hole door lining, etc.
The advantage of mullite refractory castable is that its refractory temperature is higher than other thermal insulation castable, which can be directly in contact with the flame and used as the lining of the kiln.
Another kind of refractory castable is corundum mullite castable, which is a refractory castable prepared with corundum as aggregate and powder plus some binder.It has higher mechanical strength and abrasion resistance than high alumina refractory and Mullite refractory, but less thermal shock resistance.
Steel fiber castable is widely used in high temperature vulnerable parts of metallurgy, building materials and circulating fluidized bed boilers.As follows: according to the classification of the material, it is suitable for planning the corundum quality before and after the steel fiber reinforced castable first used in large cement kiln kiln and other industrial kiln lining, high aluminum and corundum mullite stone steel fiber reinforced refractory castable first used in the cement kiln kiln mouth, wicket cover, before and after cooling machine in high temperature resistant parts and other industrial kiln liner.
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