Activated alumina ball
Activated alumina
Activated alumina, also known as activated bauxite, is a porous, highly dispersed solid material with a large surface area and microporous structure. Its microporous surface has the characteristics required for catalysis, such as adsorption performance, surface activity, excellent thermal stability, etc., and is widely used as a catalyst and catalyst carrier for chemical reactions.
Properties of activated alumina:
The chemical formula of activated alumina is Al2O3, the molecular weight is 101.96, and it is usually white spherical or powdery. Its main component is alumina, and the content is generally above 95%. The pore size distribution of activated alumina is wide, and the pore size can be adjusted by controlling the preparation conditions. In addition, activated alumina also has high thermal stability and chemical stability, and can remain stable under high temperature and acid-base environment.
Application of activated alumina:
1. Catalysts and catalyst carriers: Activated alumina is often used as catalysts and catalyst carriers in the fields of petrochemicals, fine chemicals, etc. because of its large specific surface area and suitable pore size distribution. Such as used in catalytic cracking, catalytic reforming, hydrofining and other reaction processes.
2. Gas purification: Activated alumina can adsorb and treat harmful substances in exhaust gas, such as hydrogen sulfide, nitrogen oxides, organic vapor, etc., to achieve the purpose of purifying the air.
3. Desiccant: Activated alumina has strong adsorption performance and good thermal stability, and can be used for drying and dehydrating gases and liquids, such as air compression, natural gas, oil and other fields.
4. Drinking water treatment: Activated alumina can be used to remove pollutants such as fluoride, organic matter, heavy metals in water to achieve the purpose of purifying drinking water.
In short, activated alumina, as a porous and highly dispersed solid material, has broad application prospects in the fields of chemical industry, environmental protection, energy and so on. With the continuous development of science and technology, the preparation method and application field of activated alumina will continue to expand.
