Activated alumina having a plurality of capillary channels, large surface area, can be used as an adsorbent, desiccant and catalyst. Also according to the polarity of the adsorbed species to determine the strength of the water, oxides, acetic acid, alkali and other strong affinity, is a micro water depth of desiccant, adsorbent is adsorbed polar molecules. Activated alumina fluoride removal similar to the anion exchange resin, but the fluoride ion selective anion resin large.
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Activated alumina is the scope of alumina chemicals, mainly used adsorbents, purifying agent, catalyst and catalyst support, depending on the use of its raw materials and preparation methods.