Activated alumina powder

Activated alumina, also known as activated alumina, the English name is activated alumina. Alumina is commonly referred to as "activated alumina" in catalysts, it is a porous solid material with high dispersibility and large surface area, which includes the required catalytic properties of the microporous surface, such as adsorption performance, surface activity, excellent Thermal stability, it is widely used as chemical catalyst and catalyst carrier. Transformer oil adsorbent spherical activated alumina, which is white spherical porous particles, uniformity of activated alumina particle size, surface smoothness, mechanical strength, hygroscopicity, swelling does not maintain the status quo, no cracking after water absorption, non-toxic, odorless, Soluble in water ethanol. Activated alumina is a track for high-efficiency dehumidification and drying in deep water, and is suitable for non-thermal regeneration devices.

Aluminum oxide, commonly known as alumina, has the chemical formula Al2O3. White powder, density of 3.9~4.0 g/cm3, melting point of 2050°C, boiling point of 2980°C. It is insoluble in water and slowly dissolves in concentrated sulfuric acid. This can be used to refine aluminum, which is made of ceramics, refractory materials and artificial gems in crucibles. Alumina as adsorbent, catalyst and catalyst carrier is called "activated alumina", which is a kind of porous, high dispersion characteristics and large ratio of volume surface, etc., and is widely used in petrochemical, chemical, biological, pharmaceutical and other fields.

Typically activated aluminum hydroxide is dehydrated by heating the alumina. Aluminum hydroxide, also known as hydrated alumina, alumina has a chemical composition of ·NH2O, usually in different numbers of crystal water containing, can be divided into trihydrate alumina and alumina-hydrate. After heating the dehydration of aluminum hydroxide, γ-Al2O3 can be obtained. This usually speaks of activated alumina.

Activated alumina belongs to the category of chemical alumina and is mainly used as adsorbent, water purifier, catalyst and catalyst carrier. Activated alumina has selective adsorption capacity for gas, water vapor and water content of certain liquids. After the adsorption is saturated, heating at about 175-315 ° C can remove the water and make it resurrected. Adsorption and activation can be performed multiple times. In addition to being used as a desiccant, it can also absorb the lubricating oil vapor in contaminated oxygen, hydrogen, carbon dioxide, natural gas, etc., and be used as a catalyst, a catalyst carrier and a chromatographic analysis carrier. It can be used as a defluorination agent for drinking water with high fluoride (large defluorination capacity), a defluorination agent for circulating alkane in the production of alkyl benzene, a deacidification and regeneration agent for transformer oil, a gas desiccant for the oxygen industry, the textile industry, and the electronic industry, and a gas desiccant for automatic instrument air. Desiccant, fertilizer and petrochemical industry desiccant, purifier (dew point can reach -40 ℃), air separation industry pressure swing adsorbent dew point can reach -55 ℃. It is an effective trace water deep drying desiccant. Ideal for heatless regeneration units.

Appearance of activated alumina powder:

Activated alumina powder as white spherical porous particles, uniform particle size, smooth surface, mechanical strength, hygroscopicity, swelling does not maintain the status quo, no cracking after water absorption, non-toxic, odorless, insoluble in water, ethanol, with strong fluoride The adsorption, fluoride fluoride zone is mainly used for drinking water. activated alumina powder

effect:

The ability of activated alumina powder to selectively adsorb moisture of gas, water vapor and some liquids. Post-adsorption saturation can be heated at about 175-315°C. ] to remove water and resurrect. Adsorption and resurrection are repeatable. In addition to being used as a desiccant, lubricating oils can contaminate oxygen, hydrogen, carbon dioxide, natural gas, etc. by adsorbing vapors. And used as catalyst and catalyst carrier and chromatographic carrier.

It belongs to the range of activated alumina powder of chemical alumina and is mainly used for adsorbents, scavengers, catalysts and catalyst supports, depending on the raw materials and preparation methods using it.

Henan Shiyuan Aluminum Technology Co., Ltd. was established in August 2019 with a registered capital of 1 million yuan. It is located in Shangjie District, Zhengzhou City. It has established long-term scientific research and cooperative relations with Central South University, Chinese Academy of Sciences, Zhengzhou Research Institute, and related industries. , The senior experts in the company have made remarkable achievements in research and development, technical services and independent innovation in related fields.