Calcined alumina and alumina are different substances, and their main difference lies in their preparation methods and properties.
Calcined alumina is a substance obtained by calcining natural aluminum hydroxide minerals through high temperature heating (usually above 1100°C). During the calcination process, the aluminum hydroxide minerals lose their crystal water and crystallize into alumina. Calcined alumina has larger particles, is often white or gray, has a harder texture, has higher thermal stability and chemical stability, and is widely used in ceramics, refractory materials, electronic materials and other fields.
Alumina is a chemical that is prepared by chemical reaction of bauxite or industrial aluminum hydroxide. Unlike calcined alumina, alumina is prepared by chemical reaction, has smaller particles, is often white powder, has a softer texture, and has good chemical stability and electrical insulation. Alumina is widely used in chemical industry, ceramics, preparation of high-purity aluminum metal and other fields.
In short, although calcined alumina and alumina are both prepared from aluminum minerals, their preparation methods and properties are different, and their application occasions are also different.
Alumina and calcined alumina have different prices due to their different production processes and properties.
The production process of alumina is relatively simple, mainly prepared by chemical reactions of bauxite or industrial aluminum hydroxide, so its price is relatively low, and the specific price is also affected by many factors such as market supply and demand, production cost, etc.
The production process of calcined alumina is relatively complex, and it is necessary to calcine natural aluminum hydroxide minerals at high temperatures, so its production cost is higher and the price is relatively expensive. In addition to market supply and demand and production costs, the specific price is also affected by factors such as quality and purity.
