Alumina is a high-hardness compound commonly used in the manufacture of refractory materials.

Alumina powder and brown corundum, in the use of ceramics, alumina can be divided into calcined alumina and ordinary industrial alumina, calcined alumina is the necessary material for the production of antique bricks, and industrial alumina can be used for the production of microcrystalline stone, in the traditional glaze, alumina is commonly used as a whitening material. Because antique bricks and microcrystalline stone have been favored by the market, the amount of alumina is also increasing year by year.

Alumina is the reason why aluminum is not easily corroded in the air. Pure aluminum easily reacts with oxygen in the air to form a thin alumina film covering the exposed aluminum surface.

In addition, it is commonly used as adsorbent, catalyst and catalyst carrier in petroleum refining and petrochemical industry. In industry, it is a deacidifier for transformer oil and turbine oil, and is also used for chromatographic analysis.

Alumina is suitable for a variety of dry and wet treatment processes, can be any workpiece rough surface grinding fine, is one of the most affordable abrasives, this sharp synthetic abrasives with diamond hardness, especially suitable for iron pollution has strict requirements for use. In addition, other uses of aluminum oxide powder and white corundum similar.