... Alumina, Catalyst Support Media, Ceramic Support Ball, Ball Supports The 99% Al2O3 inert alumina ceramic ball are used as catalyst, absorbent ... intensity of low strength activity catalyst.Chemical composition Al2O3+SiO2Al2O3Fe2O3MgONa2OOther> 99%99%<0.1%<0.5%<0.05%<0.05% Physical property ... )>1630>161-1/2" (38mm)>2340>232" (50mm)>3460>34 99% Alumina Ball packing, Catalyst Bed Supports