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Chemical Abstracts of Activated Alumina: 1344-28-1
Activated alumina, also known as activated alumina, English name activated alumina. The use of alumina in catalysts is often referred to as "activated alumina". It is a kind of porous and highly dispersed solid material with large specific surface area. Its microporous surface has the characteristics of adsorption performance, surface activity, good thermal stability and so on. It is widely used as catalyst and catalyst carrier for chemical reactions.
Spherical activated alumina variable pressure oil adsorbent is white spherical porous particles. Activated alumina has uniform particle size, smooth surface, high mechanical strength, strong hygroscopic property, does not expand or crack after water absorption, maintain integrity, non-toxic, tasteless, insoluble in water and ethanol. Activated alumina is a kind of high efficient desiccant for deep drying of trace water and is suitable for non-heat regeneration equipment.
application
Activated alumina balls used in air compressors have the characteristics of large adsorption capacity, large specific surface area, high strength and good thermal stability. Widely used in chemical, petrochemical, natural gas, chemical fertilizer and Other industries of adsorbent, desiccant and catalyst.
Preventive measures: 1. When the fluorine content of raw water is less than 4mg/L, the thickness of the filter material should be greater than 1.5m, and when the fluorine content of raw water is 4-10mg/L, the thickness of the filter material should be greater than 1.8m. When pH value is adjusted with sulfuric acid, scaling is smaller, filtration rate is lower, and the thickness of filtration layer can be reduced to 0.8~1.2m. 2. When the filter head is used for water distribution, a layer of quartz sand with a thickness of 50 to 150 mm and a particle size of 2 to 4mm shall be placed under the adsorption layer as the supporting layer. 3. When the surface of the defluorine agent is yellowish brown, the defluorine effect is significantly reduced. This is caused by pollution from impurities in the water. Therefore, it is best to treat with 3% hydrochloric acid every six months. The operation method is the same as the regeneration method. Our company Our main products: colloidal silica (silica sol), ion exchange resins, molecular sieves, health care agents and other basic organic and inorganic chemicals.
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