| Customization: | Available |
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| Type: | Activated Charcoal |
| Application: | Wood |
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Activated alumina. It has a pure white round spherical appearance with a large surface area, uniform particle size, smooth surface, high mechanical strength, good thermal stability, and strong hygroscopicity. It absorbs water without swelling, cracking, or deformation, and is easy to regenerate. Applicable to: adsorbents and desiccants in the chemical, petrochemical and natural gas industries. It can also be used as fluoride remover, water purifier, air compressor, catalyst and catalyst carrier.
| Partical size | 3 -- 5 mm | 4 -- 6 mm | 6 -- 8 mm |
| Al2O3 ( % ) | ≥ 92 | ||
| Specific Surface Area ( m3/g ) | ≥ 300 | ||
| Pore Volume ( cm3/g ) | ≥ 0.4 | ||
| Crushing Strength ( N/PCS ) | ≥ 130-150 | ||
| Density ( g/ml ) | 0.66-0.79 | ||
| Loss of Ignition ( % ) | ≤ 0.7 | ||
| Fe2O3 % | ≤ 0.02 | ||
| Na2O % | ≤ 0.3 | ||
| Adsorption Capacity ( % ) | 17 | ||
| Abrasion ( % ) | ≤ 0.15 | ||
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 remain intact, non-toxic, odorless, insoluble in water and ethanol. Fluorine removal agent (large capacity for fluorine removal), defluorination agent for circulating alkanes in the production of alkylbenzene, deacidification regenerator for transformer oil, used for gas drying in the oxygen industry, textile industry, and electronics industry, drying of automatic instrument wind, and It is used as desiccant and purifying agent in chemical fertilizer, petrochemical drying and other industries (the dew point can reach -40 degrees). In the air separation industry, the pressure swing adsorption dew point can reach -55 degrees. It is an efficient desiccant for deep drying.
Activated Alumina Applications
Much like activated carbon, the high surface area and porosity exhibited by activated alumina allows it to capture and hold on to various types of materials, lending it to be employed as an adsorbent, desiccant, and more. The primary ways in which activated alumina products are used include:
Adsorbents
Activated alumina is a highly effective adsorbent in both gas and liquid applications, and as such, is employed by a number of industries for targeted removal of components from other media. As an adsorbent, activated alumina is most well known for its use in water filtration applications, where it serves as a cost-effective adsorbent for removing fluoride from water. It is also capable of removing a variety of other contaminants, including lead, and sulfur.
Desiccant
Similar to its role as an adsorbent, activated alumina can also adsorb water from air, allowing it to be used as a desiccant; activated alumina can capture and trap water in order to keep things dry, much like silica gel. As a desiccant, activated alumina can adsorb up to 20% of its own weight in water at a relative humidity of 50%. Activated alumina is employed as a desiccant in a wide variety of applications, including the removal of water vapor from gases in industrial settings. Water adsorbed onto the activated alumina can then be desorbed via thermal treatment and the alumina reused.
Catalysts
Activated alumina is also widely used as a catalyst, with roles as the catalyst itself, as well as an inert carrier, or substrate for other catalysts. As a catalyst, activated alumina is most well known for its role as a Claus catalyst; activated alumina is the most commonly used Claus catalyst in sulfur recovery endeavors at oil and gas refineries.
Conclusion
Due to its capabilities as an adsorbent, desiccant, and catalyst, activated alumina is a valuable tool in many industrial process settings. Produced from the activation of aluminum oxide resulting from the Bayer process via calcination, activated alumina is highly customizable and is often agglomerated to improve performance and handling characteristics. Feasibility testing is often a useful endeavor when working with activated alumina products.
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