Performance of Activated alumina

- Apr 17, 2020-

XR Activated alumina currently use a mechanical automated production line to prepare activated alumina balls through a 400-600 degree high temperature dehydration method. Activated alumina is actually formed by agglomeration of particles that are orders of magnitude smaller than it, and the particles are aggregates formed by coalescence of smaller primary particles, and pores of different sizes are formed in the aggregate body. The existence of macropores, mesopores, and small pores of activated alumina: the pores between the microparticles form macropores, and the primary particles coalesce to form micropores or mesopores (<2nm to tens of nm) of different sizes. The mesoporous network communicates with each other and runs through the entire carrier particle, that is, the pores communicate with each other.

 

Parameters such as specific surface area, pore size and porosity of activated alumina are decisive factors that affect its performance. The specific surface area of XR activated alumina spheres is 320-350m2 / g. The larger the specific surface area of activated alumina, the more molecules it can carry and adsorb. The more, the better the gas purification, adsorption and drying effect.

 

The appearance of activated alumina spheres is white round spheres, smooth surface without dust, internal micropores are developed, it is a high-dispersion solid material, has the characteristics of large specific surface area, its tiny pore surface has the characteristics required for catalytic action, such as adsorption Performance, surface activity, excellent thermal stability, certain surface acidity, etc., are widely used as catalysts and catalyst carriers for chemical reactions. It is also used as gas and liquid desiccant, gas purification adsorbent, drinking water defluorinating agent, chemical catalysis, and is widely used in industry.


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