| Product Name | Short Name | Purity | Surface Specific Area | α crystal type | PH value in 4% dispersion |
|---|---|---|---|---|---|
| Fumed Alumina | Al2O3 | 98% | 100±15 m2/g | 7-12% | ≥ 3.9% |
High-temperature insulating material
Vapor phase alumina has a high melting point, hardness, high insulation, and other physical properties, so that it can be widely used as a high-temperature insulation material in various fields. For example, it can manufacture lining materials for high-temperature electric furnaces and high-temperature structural materials for aerospace spacecraft. In addition, in high-temperature motors, transformers, and other electrical equipment, fumed alumina can also be used as an insulating material to improve the performance and reliability of the equipment.
Catalyst support
The gas-phase alumina has a high specific surface area, activity, and dispersion so it can be widely used as a catalyst carrier in various chemical reactions. For example, in petrochemicals, fumed alumina can prepare catalyst carriers for hydrocarbon cracking and aromatics isomerization reactions. In environmental protection, fumed alumina can also be used as a catalyst carrier to treat pollutants such as waste gas and wastewater, such as removing CO, NOx, and organic matter.
High purity alumina
The vapor phase alumina has the characteristics of high purity, high activity, and high dispersion, so it can be prepared with high-purity alumina. High-purity alumina is a very important material that can be used in many fields. For example, it can manufacture high-performance catalysts, high transmittance optics, electronic components, etc. In addition, high-purity alumina can also be used to manufacture high-temperature superconducting materials, high-efficiency thermal insulation materials, and so on.
Biomaterial
Fumed alumina has good biological activity and can be used to make biological materials. For example, fumed alumina can be used as a bioceramic material and has good bonding properties with bone tissue, so it has been widely used in stomatology, orthopedics, and other fields. In addition, fumed alumina can also be used in biomedical fields such as biosensors and drug carriers.
High-efficiency adsorbent
Fumed alumina has a high specific surface area, activity, and dispersion, so that it can be widely used as a high-efficiency adsorbent in various fields. For example, fumed alumina is used as an environmental treatment to eliminate pollution, such as wastewater and waste gas. It can also adsorb harmful substances, such as organic matter. In addition, in the chemical industry, fumed alumina can also be used as an adsorbent to adsorb certain components from gases or liquids.
Nanomaterials
Because of its high dispersion, nanomaterials can be prepared by controlling reaction conditions and synthesis parameters. For example, by controlling the parameters of vapor phase alumina synthesis, alumina nanoparticles with different morphologies and sizes can be prepared, and these nanoparticles can be used as catalytic materials, photocatalysts, drug carriers, etc.
Production Method of Fumed Alumina Fumed Aluminum Oxide:
Direct oxidation process
The direct oxidation method is the reaction of aluminum or aluminum compounds with oxidizing agents such as air or oxygen to produce alumina under normal or high pressure. This method can use different reaction media, such as solid, liquid, or gas. Among them, the solid medium has good mass and heat transfer performance, can control the reaction temperature and other advantages, and is one of the most commonly used reaction media. The liquid medium can use an aluminum compound solution, such as aluminum chloride, aluminum sulfate, etc., to reduce the reaction temperature and energy consumption. The gaseous medium can use aluminum or aluminum compound vapor, but the reaction temperature is higher, and the energy consumption is larger.
Sodium aluminate solution method
The sodium aluminate solution method is the method of carbon separation of sodium aluminate solution or carbon dioxide by controlling the pH value of the solution and reaction temperature and other conditions to produce different particle sizes and morphology of alumina. The advantage of this method is that the production cost is low and can be produced on a large scale, but the product quality is unstable, and the waste liquid generated needs to be treated.
Alcohol-aluminum brine process
The reaction of alkylaluminum and halide forms Alkylaluminum halide, and then alumina is formed by hydrolysis. The method has the benefits of having mild reaction conditions， fine product size, high purity, convenient operation, and low production cost. However, the disadvantage of this method is that it needs to use a large number of organic solvents and needs to be washed and dried, which is easy to cause environmental pollution and high production cost.
Pyrolysis method of aluminum hydroxide
The pyrolysis method of aluminum hydroxide produces aluminum hydroxide by roasting and decomposition at high temperatures. The method has the advantages of a simple production process, high product purity, and low energy consumption. However, this process consumes a significant amount of energy， which easily leads to the product sintering and agglomeration, which needs to be broken.
Packing & Shipping of Fumed Alumina Fumed Aluminum Oxide:
We have many different kinds of packing which depend on Fumed Alumina quantity.
Fumed Alumina Fumed Aluminum Oxide packing: 10kg/bag.
Fumed Alumina Fumed Aluminum Oxide shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality fumed alumina, please feel free to contact us and send an inquiry. ([email protected])
