1.absorbing capacity,catalytic activity,porosity 2.big specific surface area 3.used as sorbent,desiccant, activator Activated Alumina possesses Characteristics such as absorbing capacity, catalytic activity, porosity, high dispersion and big specific surface area. It is applicable to drying of gas and liquid, and be used as sorbent, desiccant, activator and other carriers in petrolic, fertilizer ...