activated alumina


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activated alumina

[′ak·tə‚vād·əd ə′lüm·ə·nə]
(materials)
Highly porous, granular aluminum oxide that preferentially absorbs liquids from gases and vapors, and moisture from some liquids; also used as a catalyst or catalyst carrier, as an absorbent to remove fluorides from drinking water, and in chromatography.

activated alumina

A form of aluminum oxide which adsorbs moisture readily and is used as a drying agent.
References in periodicals archive ?
Based on type, the global desiccants and adsorbents market can be segmented into molecular sieves, activated alumina, activated carbon, silica gel, ceramic balls, and tabular alumina.
3]] Media ID M#5 M#6 Symbol K-AL K-ZL 8% KMnO4 6% KMnO4 Material impregnated impregnated zeolite activated alumina Shape Spherical pellet 1/8"-1/4" pellet 3.
The removal efficiency with activated alumina was found to be maximum up-to 98 percent and it required low operator skills.
2004), Investigations on the column performance of fluoride adsorption by activated alumina in a fixed-bed, Chemical Engineering Journal, 98(1-2), 165-173.
The main component of the unit is PVC basket containing 3 Kg of activated alumina giving a bed depth of 17 cm.
Fluoride removal from drinking water by fluidized activated alumina adsorption.
However, they are not cheap: Countertop water distillers go for $200 and up, and an activated alumina defluoridation filter--most come in cartridge form and can be placed in-line under counters--are costly, too, and need to be changed out frequently.
If you wish to clear up your tap water from fluoride and chlorine, try reverse osmosis, distillation, or activated alumina filtration system.
3]; Target: hydrocarbons, VOCs, nitrogen dioxide M6 Activated alumina Activated alumina with potassium with potassium permanganate; Spherical pellets: 1.
Reacted fluorine gases are removed after use by scrubbing with activated alumina.
The Extended Life Vent Dryer can be filled with a variety of adsorbents including indicating silica gel, molecular sieve, activated alumina and activated carbon.
Some common desiccants are activated clay, activated carbon, activated alumina and silica gel.