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Activated Alumina

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Activated Alumina


  Also known as modern water purification alumina soil, the name is activated alumina or activated alumina; activated alumina (I) activated oxide. , High-permeability crystalline material has a lot of richness, and its microporous surface has the required functions, such as permeability, fluorine removal characteristics, drying performance, performance, excellent thermal stability, etc., so it is widely used by households Lamp desiccant and chemical reaction and catalyst carrier.


Product Description


  High-performance modern water purification activated alumina can bring the following benefits in the unshaped refractory ingredients: increase the density, fluidity, strength of the green body, increase the amount of secondary mullite, etc., and reduce the amount of water and porosity. In addition, activated alumina can also be used as an adsorbent and desiccant, with large water absorption, fast drying speed, regeneration (400-500K baking), and water absorption without expansion, cracking, and deformation.


Appearance


Modern water purification activated alumina is white spherical porous particles with uniform particle size, smooth surface, high mechanical strength, strong hygroscopicity, does not swell or crack after absorbing water, and remains in its original state. It is non-toxic, odorless, insoluble in water, ethanol, and resistant to fluorine. It has strong adsorptivity and is mainly used for defluoridation of drinking water in high fluoride areas. Modern water purification activated alumina has selective adsorption capacity for gas, water vapor and some liquid moisture. After the adsorption is saturated, it can be heated at about 175-315°C to remove water to restore and regenerate. Adsorption and recovery regeneration can be carried out many times. In addition to being used as a desiccant, it can also absorb the vapor of lubricating oil from polluted oxygen, hydrogen, carbon dioxide, natural gas, etc. It can also be used as catalyst and catalyst carrier and chromatography carrier.


Product Usage


It is widely used as catalyst and catalyst carrier in petrochemical industry and fertilizer industry. Modern water purification activated alumina has adsorption properties, so it is used as a desiccant for gas and liquid, an adsorbent for gas purification, a defluorinating agent for drinking water, and a color and odor elimination agent for industrial sewage.

It can be used in conjunction with a household defluoridation tank and is an ideal drinking water defluoridation device in the family. The fluorine removal filter material can also be used in conjunction with the fluoride removal device of a water plant or an industrial fluoride removal device. Activation of fluoride removal filter material for household fluoride removal device: configure aluminum sulfate solution (3 liters of water, 0.3kg solid aluminum sulfate), put alumina (AL2P3) fluoride removal filter material into the above solution, soak for 5-10 hours and discard it. Liquid (stir properly when soaking), and then wash 3-5 times with clean water, each time about 2 liters of water, or use the PH adjustment method to regenerate, the PH value is controlled at 7.5. The activated alumina fluoride removal filter material can be used continuously for 6-8 years. When the surface appears yellowish-brown, the fluorine removal effect is significantly reduced. This is caused by impurities in the water. Therefore, it is best to treat it with 3% dilute hydrochloric acid every six months. The operation method is the same as the regeneration method.


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