... 4)CAS NO.1344-28-1 Activated Alumina Fluoride Adsorbent:Air,Gas drying,separationActivated alumina has much micro-paths, so the ... drying of cracked gas, ethylene and propylene, hydrogen-generation, air separation, instrument air drying and fluorine treatment for H2O2, also in the ... : is for catalyst carrierKA405: is for dehydrating and drying in air seperation etc.