Calcination is a process that involves heating a material to a high temperature with the intent of chemical dissociation or separation.
This process is typically used in the creation of inorganic materials.
4 Key Points About Calcination
1. The Most Common Example of Calcination
The most common example of calcination is the heating of calcium carbonate, which decomposes into calcium oxide and carbon dioxide.
2. Crucial in Industrial Processes
This process is crucial in the production of lime, a key ingredient in various industrial processes including the production of cement.
3. Temperature and Thermal Decomposition
During calcination, the calcium carbonate is heated in a reactor or furnace, typically to temperatures between 800°C to 1300°C.
At these high temperatures, the calcium carbonate undergoes thermal decomposition, releasing carbon dioxide and leaving behind calcium oxide.
4. Distinct from Other Thermal Processes
The calcination process is distinct from other thermal processes like thermal desorption, which uses heat to separate volatile components from inorganic minerals without causing combustion.
Calcination specifically aims to remove volatile impurities or induce phase transitions through thermal decomposition.
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