Manufacturer of high-purity industrial activated alumina 4-6mm activated alumina Activated alumina ball desiccant for chemical adsorption of activated alumina is a specially treated alumina material with high specific surface area, porosity, and excellent adsorption performance. It is prepared by physical or chemical methods and widely used in gas and liquid purification, catalyst support, and various adsorption processes. The activity of activated alumina mainly comes from its rich surface structure and pore system, which provide a large number of active sites for adsorption and catalytic reactions.