How to Determine the Adsorption Capacity of Activated Alumina?
Activated alumina has applications in many fields, it can be used as adsorbent, desiccant and so on. These are inseparable from its appearance. Its molecular spacing and pore structure also make it a performance factor, so what does it look like? What about the adsorption capacity? Let’s take a look.
Adsorption properties of activated alumina
Activated alumina balls are prepared by high temperature dehydration at 400-600 degrees. Activated alumina is actually formed by agglomerating several orders of magnitude smaller particles, and the particles are aggregates formed by the coalescence of smaller primary particles, and different size hole. Parameters such as specific surface area, pore size and porosity of activated alumina are the decisive factors affecting its performance. The specific surface area of activated alumina balls is 280-300m2/g. The better the gas purification, adsorption and drying effect. Activated alumina is more and more widely used in the current industry, and it is also an environmental protection product.
Activated alumina is used as a strong base agent to neutralize acidic wastewater or heavy metal wastewater, making acidic wastewater neutral. It may disrupt the separation of complexing agents (such as sulfamate or chelating agents) from certain metal ions. It effectively removes anions such as phosphate, sulfate and fluoride ions. Activated alumina absorbs sulfur dioxide in the flue gas discharged from the boiler, so that the sulfur content in the flue gas reaches the environmental protection standard. After adjusting the pH value, it will cause the emulsion wastewater to lose stability and emulsification.
The determination of the adsorption capacity of activated alumina
Activated alumina is mainly used for catalysis, adsorption and so on. We also know its adsorption capacity and it is also widely used in industry. So, how to judge its adsorption capacity?
Observe the water absorption rate: the water absorption rate is the performance difference of activated alumina, and the water absorption rate is the liquid phase adsorption index. You can usually see whether the specific surface area and micropore development of activated alumina are high-quality activated alumina CTC>100%, benzene adsorption>50%, if the adsorption capacity is different, the cost will be different.
Observe the decolorization ability: put activated alumina into a colored beverage bottle, if it can quickly absorb the color in the beverage, the beverage in the bottle will become colorless and transparent, indicating that its adsorption capacity is good.
Look at the density: In the case of equal weight packaging, the more holes, the higher the adsorption performance, the lower the relative density, the lighter the hand feeling, and the larger the volume. It is recommended that you buy products with low density, light hand feeling, heavy weight and large volume.
Activated alumina is sold well all over the world for its better performance, fast and thoughtful service, and value for money price. Naike Chemical sincere and trustworthy as the basic business philosophy, customer satisfaction as the service tenet, adhere to the quality of survival, reputation and development, to provide customers with excellent activated alumina, reliable, assured service for customers to relieve their worries.
