Activated alumina balls are white spherical particles, which are aluminum hydroxide produced by the aluminum treatment method, and then ground and finely processed into balls. The balls are sintered at a high temperature in a kiln to make activated alumina balls or other types of activated alumina series. product. Activated alumina aluminum balls have adsorption performance, fluorine removal performance, drying performance, surface activity, etc., and are widely used as household desiccants and catalysts and catalyst carriers for chemical reactions.

Product parameter

Diameter(mm): 1-2; 2-4; 4-6; 6-8; 8-12  

Bulk density(g/ml): 0.65-0.7     

Specific surface area(m2/g): ≥300       

Hole volume(ml/g): ≥0.38         

Compressive strength(N/particle): ≥100

AL2O3(%):≥92

Na2O(%):≤0.45

SiO2(%):≤0.1

Fe2O3(%):≤0.04

Static adsorption capacity(%):17±2

Water adsorption(%):≥50

Applications

Activated alumina balls have the characteristics of not being soft, swelling, and not pulverizing when immersed in water, so they are widely used in gas and liquid phase drying in petrochemical industry, textile industry, oxygen industry and automatic instrument wind drying. Permanent gases such as air, oxygen, nitrogen, smelting gas and petroleum cracking gas are also a desiccant for deep drying of trace water.

Properties

Activated alumina ball is a kind of porous, high-dispersion solid material, uniform particle size, smooth surface, large surface area, high mechanical strength, strong hygroscopicity, after absorbing water, it will not expand, crack, deform and maintain its original state. It is toxic, odorless, insoluble in water and ethanol, and has a strong adsorption of fluorine. It is mainly used for the removal of fluoride in drinking water in high-fluorine areas.