Alumina balls, also known as modern water-purifying activated alumina, are porous, highly dispersible solid materials and have the characteristics required for catalysts, and are therefore commonly used as catalysts in the chemical industry. The following is a brief introduction to the use and properties of alumina balls.

Product Usage

In the petrochemical and fertilizer industries, it is widely used as a catalyst and catalyst carrier. Modern water-purifying activated alumina has adsorption characteristics and is therefore used as a desiccant for gases and liquids, as an adsorbent for gas purification, as a deionizing agent for drinking water, as a color and odor eliminating agent for industrial sewage.

It can be used together with household fluorine removal cylinders, and is an ideal drinking water defluoridation device in the family. The defluorination filter material can also be used together with the fluorine removal device of the water plant or the fluorine removal device for industrial use. Activation of fluorine removal filter for household fluorine removal equipment: dispose of aluminum sulfate solution (3 liters of water, 0.3 kg of solid aluminum sulfate), put alumina (AL2P3) defluoridation filter into the above solution, soak for 5-10 hours to discard The liquid (should be properly stirred during soaking), and then washed 3-5 times with water, each time with water about 2 liters, or regenerated by pH adjustment, the pH is controlled at 7.5. Activated alumina defluorination filter can be used continuously for 6-8 years. When the surface appears yellowish brown, the effect of removing fluorine is obviously reduced. This is caused by impurity pollution in the water. Therefore, it is best to treat it once every half a year with 3% dilute hydrochloric acid. The method of operation is the same as the regeneration method.

Physical properties

Moreover, it is required that the dissolution rate of alumina in the cryolite melt is fast, the bottom of the electrolytic cell tank is deep and deep; the heat insulation of the shell on the electrolyte is good; the moisture is not absorbed in the air, the flying loss is small, the fluidity is good, and the transportation is convenient. And to facilitate the automatic feeding of the electrolytic cell. All of these properties depend on the physical properties of the alumina.

The indicators used to characterize the physical properties of alumina are: angle of repose, α-Al203 content, bulk density, particle size and specific surface area, and wear coefficient.