Inert alumina filler balls
There are many kinds of alumina balls, and different alumina balls are used in different scenarios. For example, activated alumina balls can be used as desiccants, and inert alumina balls can be used as underfill materials for hydrocracking refining equipment and catalytic reforming equipment. The media department of the mill library network will talk about the alumina filler ball of alumina ball.
Alumina filler balls, also known as inert alumina ceramic balls, "inert" means that it has a weak chemical reaction and will not play a catalytic role. The texture of the alumina filler is very dense, so the water absorption rate is very low, and it cannot play the drying effect like activated alumina balls. We often see inert alumina packing balls in industries such as petroleum, chemical, fertilizer, natural gas and environmental protection. In these industries, they are used as covering support materials and tower packings for catalysts in reactors.
Do you know how alumina filler balls are processed?
Ultrafine fine-grained calcined alumina powder is the raw material of alumina filler balls. After being stirred and mixed by automatic mixing equipment, it is formed by a ball-forming machine, and then calcined at 1600 ℃ in a high-temperature tunnel kiln to form the final shape. Alumina filler balls are resistant to high temperature, high pressure, and corrosion by acid, alkali and other solvents. They not only have stable chemical functions, but also have good thermal stability. Its function is to add a distribution point of gas or liquid, which can support and protect the active catalyst with low strength.
Taking 99% φ20mm alumina filler ball as an example, its compressive strength is about 13KN/piece, its water absorption rate is less than 5%, its bulk density is ≥1900kg/m³, and its temperature resistance is more than 850℃. Advantages, it can be used as a material for filling the bottom, which is very popular among users.
The alumina content determines the various index data of alumina filler balls. Generally, the higher the alumina content, the better the performance and the higher the price. Users can choose according to their needs.
