The inert alumina packing ball is widely used in petroleum, chemical, fertilizer, natural gas and environmental protection industries, as the covering support material and tower packing for the catalyst in the reactor. 

It has the characteristics of high temperature and pressure resistance, low water absorption, and stable chemical properties. 

Can withstand the corrosion of acids, alkalis and other organic solvents, and can withstand temperature changes in the production process. 

Its main role is to increase the distribution point of gas or liquid, support and protect the active catalyst with low strength.