Calcined Alumina

Understanding Calcined Alumina

Calcined alumina, a refined form of aluminum oxide, is a vital ingredient in various industrial processes. This substance emerges when aluminum hydroxide is heated in a process known as calcination, which removes moisture to yield a highly porous and granular product. Its diverse applications range from serving as a raw material in refractories to being a critical component in the production of aluminum metal.

Properties and Specifications

The physical and chemical characteristics of calcined alumina are pivotal to its utility in different sectors. It boasts a high melting point, excellent hardness, and remarkable thermal stability, making it suitable for high-temperature environments. Additionally, its controlled particle size and distribution contribute to its effectiveness as an abrasive and as a polishing agent.

Industrial Applications

In the realm of industrial applications, calcined alumina plays a crucial role. It is the backbone of the production of aluminum metal, serving as the precursor for smelting. Beyond metallurgy, it is instrumental in the manufacture of refractory materials, where its resistance to heat and corrosion is invaluable. Its use extends to the ceramic industry, where it enhances the mechanical strength and thermal properties of ceramic goods.

Technical Advantages

The technical advantages of calcined alumina are manifold. Its intrinsic properties, such as high purity and inertness, make it a preferred material in applications demanding chemical stability, such as in the production of glass and as a filler in plastics and paper. In the electronics industry, its electrical insulating properties are harnessed in the fabrication of substrates and integrated circuit boards.

Environmental and Safety Considerations

Environmental and safety considerations are paramount when handling calcined alumina. It is non-toxic and does not release harmful substances during its use, aligning with environmental safety standards. However, adequate protective measures should be taken to prevent inhalation of dust during handling and processing.

Sourcing and Availability on Alibaba.com

Alibaba.com facilitates the sourcing of calcined alumina by connecting buyers with a global network of suppliers. The platform offers a diverse array of this compound in various grades and formulations to meet the specific needs of different industries. With a commitment to efficiency, Alibaba.com ensures a streamlined procurement process for businesses seeking reliable sources of calcined alumina.