What is the difference between alumina balls and activated alumina balls? The difference between alumina balls and activated alumina balls is alumina powder. Calcined A alumina powder, abbreviated as calcined alumina powder, has a density of 3.9-4.0g/cm3, a melting point of 2050 ℃, a boiling point of 2980 ℃, and is insoluble in water. Industrial alumina primarily consists of alumina powder and alumina powder. It can be extracted from bauxite in industry. Bauxite (Al2O3H2O and Al2O33H2O) is the preferred mineral for aluminum in nature. It is impregnated with high-temperature sodium hydroxide solution to obtain sodium aluminate solution. After filtering, remove the residue. After cooling the filtrate, add aluminum hydroxide crystals. After a long period of stirring, the sodium aluminate solution will differentiate into aluminum hydroxide deposits; Clean the accumulated material separately and calcine it at a high temperature above 1550 ℃ to obtain the calcined alumina powder. In the lattice of A-type alumina, oxygen ions are tightly packed into hexagons, and Al3+is symmetrically distributed in the octahedral coordination center surrounded by oxygen ions. The lattice energy is large, so the melting and boiling points are high. A-type alumina is insoluble in water and acid, also known as alumina in industry, and is the fundamental material for making metallic aluminum. Also used for making refractory bricks, refractory crucibles, refractory pipelines, and high-temperature resistant experimental instruments; It can also be used as a grinding agent, flame retardant, filler, etc. High purity alpha alumina is also a material for producing artificial corundum, artificial ruby, and sapphire; It is also used for the production of modern large-scale integrated circuit boards. Activated alumina is produced by dehydrating aluminum hydroxide at a low temperature of 140-150 ℃, also known as activated alumina (also known as aluminum gel) in industry. In this structure, oxygen ions are approximately tightly packed at the vertical center of mass, while Al3+is irregularly distributed in the octahedral and tetrahedral spaces enclosed by oxygen ions. A-type alumina is insoluble in water and soluble in strong acid and alkali solutions. When heated to 1200 ℃, it will be completely transformed into alumina type. Alumina is a porous material with an inner surface area of several hundred square meters per gram, high activity, and strong adsorption capacity. Industrial products are usually colorless or pink cylindrical particles with good pressure resistance. Commonly used as adsorbents, catalysts, and catalyst carriers in petroleum refining and petrochemical industry operations. In industry, alumina is a deacidification agent for transformer oil and turbine oil, and is also used for chromatographic analysis; It is a laboratory neutral strong single adjustment, and only monotonically adjusted not lower than phosphorus pentoxide. After heating to below 175 ℃ for 6-8 hours, it can be regenerated and reused. Alumina grinding balls are widely used in ceramic factories and refractory material factories. Nowadays, grinding balls using goose soft stone as a medium are gradually being replaced by alumina grinding balls. Grinding mud with 10% alumina grinding balls (diameter 35mm) made of natural pebbles can shorten the grinding time by 15% compared to using only pebbles. Using high alumina balls+30% alumina grinding balls (diameter 35mm) to grind mud can shorten the grinding time by about 30% compared to using only alumina balls. The high cost brought by using alumina grinding balls can save electricity costs by about 2 years alone. According to market data, the use of alumina grinding balls instead of natural balls has increased product output by about three times. Nowadays, most cement plants also use steel balls, which have been replaced with high alumina balls with longer service life. Practice has proven that using alumina grinding balls to grind materials can not only save electricity costs and increase production, but also increase the power consumption of machinery, providing great protection for mechanical equipment. In addition to ceramic work, timely and chemical operations are also inspecting and using alumina grinding balls for production and processing. Practice has proven that using high alumina balls instead of time balls for grinding can significantly improve product yield and quality, as well as significantly enhance whiteness and uniformity. And the loss rate is not as fast as steel balls, saving manpower and time costs for adding balls.