Activated alumina oxide has much micro- paths, so the specific surface is large. It can be used as absorbent desiccant and catalyst carrier. At the same time, it is confirmed by the polarity of attracting material. It is close to water, oxide material, acid, alkali, and it is a deep desiccant for micro water, and also a adsorbent for polarmolecule.
It is like anion exchange resin when It removes fluorine. It has high efficiency for absorbing fluorine and has steady volume, each cubic meter of activated aluminum oxide can absorb fluorine about 6400kg. It has high hardness, lower wear rage, never become soft when it is soaked by water, never swollen, never chalking nor breaking. It can be widely used in oil cracked gas.
It is also a kind of trace water desiccant and the pole-molecular absorbent, according to the absorbed molecular polarization, the attachment force is strong for water, oxide, acetic acid, alkali etc.