Industrial sector

Electrolytic aluminum raw materials: Aluminum oxide is the main raw material for producing metallic aluminum. Through the electrolytic alumina cryolite molten salt system, alumina can be reduced to metallic aluminum in the electrolytic cell, which is currently the main method for large-scale production of aluminum in industry.

Refractory materials: Alumina has a high melting point (about 2054 ℃), high hardness, and good chemical stability, which can be used to manufacture various refractory materials such as refractory bricks, refractory crucibles, refractory fibers, etc. It is widely used in high-temperature industrial furnaces such as steel, glass, ceramics, etc.

Abrasive: Due to its high hardness, alumina can be used as an abrasive for processes such as grinding, polishing, and cutting. For example, corundum abrasive can be used to manufacture grinding wheels, sandpapers, grinding pastes, etc., for the processing of materials such as metals, glass, ceramics, etc., which can effectively improve processing efficiency and surface quality.

Chemical industry field

Catalyst and carrier: Alumina has a large specific surface area and good adsorption performance, and is often used as a catalyst or catalyst carrier. In the petrochemical industry, it is used for reactions such as hydrocracking, catalytic reforming, isomerization, etc; In automobile exhaust purification, as a carrier of ternary catalysts, it helps to convert harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into harmless carbon dioxide, water, and nitrogen.

Desiccant: Activated alumina has strong water absorption and is a commonly used desiccant for drying gases and liquids. It is widely used in petrochemical, natural gas processing, air separation and other fields, effectively removing moisture, preventing equipment corrosion and product quality degradation.

Other chemical raw materials: Alumina can be used to prepare other aluminum compounds, such as aluminum hydroxide, aluminum sulfate, aluminum chloride, etc. These compounds have important applications in industries such as water treatment, papermaking, pharmaceuticals, and food.

Electronic field

Integrated circuit: In the manufacturing of integrated circuits, aluminum oxide can be used as an insulation layer material to isolate different circuit components and conductive lines, prevent current leakage and short circuits, and ensure the normal operation of chips.

Electronic ceramics: used for manufacturing electronic ceramic components, such as ceramic capacitors, ceramic filters, ceramic substrates, etc. Alumina ceramics have excellent electrical, mechanical, and thermal stability properties, which can improve the performance and reliability of electronic components.

Optical field

Sapphire: The main component of sapphire is aluminum oxide, which has excellent optical properties such as high transparency, high hardness, and wide optical transmission band. It can be used to manufacture optical components such as optical windows, lenses, prisms, etc., and has important applications in aerospace, national defense, astronomical observation, and other fields. In addition, high-quality sapphires can also be used as gemstones in the jewelry industry.

Fluorescent materials: By doping specific rare earth elements or other activators into alumina, materials with fluorescent properties can be prepared and used in fields such as fluorescent lamps, display screens, biomedical imaging, etc.

Biomedical field

Artificial joints: Alumina ceramics have good biocompatibility, high hardness, and wear resistance, and can be used to manufacture artificial hip joints, knee joints, and other joint prostheses. They can replace damaged joint tissue, restore joint function, and improve patients' quality of life.

Dental materials: In the field of dentistry, alumina can be used to make restorative materials such as dental crowns, bridges, and implants. It has the advantages of beauty, durability, and good biocompatibility, and can blend well with natural teeth to restore their shape and function.

Other fields

Paper industry: used for surface sizing and filling of paper, which can improve the whiteness, smoothness, strength, and printing adaptability of paper.

Coating industry: Adding it to coatings can improve their wear resistance, corrosion resistance, and hardness, and enhance their performance.

Cosmetics: Due to its good dispersibility and adsorption properties, alumina can be used as a filler, thickener, and adsorbent in cosmetics to adjust the texture and performance of cosmetics. It also has certain sun protection and UV resistance effects.