Alumina introduction
Activated alumina is made by heating and dehydrating aluminum hydrate. Its properties depend on the structural state of the initial hydroxide. Generally, it is not pure Al2O3, but a partially hydrated amorphous porous structure material, which is not only amorphous. The gel, as well as the crystals of hydroxide. Activated alumina is also known as its capillary channel surface with high activity. It has a strong affinity for water and is an adsorbent for deep drying of trace water. Under certain operating conditions, it can be dried to a depth of -70 ° C below the dew point.