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What is Calcination
by Therser Sales Team on 09-May-2023 09:21:39
Calcination
It is used to bring about various chemical and physical changes in the material being processed.
During calcination, the substance is subjected to controlled heating, often in a furnace or kiln, to cause decomposition or removal of volatile components, such as water, carbon dioxide, and other gases. The high temperature alters the chemical and physical properties of the material, resulting in desired transformations.
Calcination serves several purposes depending on the specific application:
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Removal of volatile components: Calcination can be employed to remove volatile impurities or substances bound within the material. For example, when heating limestone (calcium carbonate) during the calcination process, carbon dioxide is released, leaving behind quicklime (calcium oxide).
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Thermal decomposition: Certain materials undergo thermal decomposition during calcination, resulting in the formation of new compounds or phase changes. This is commonly seen in the production of cement, where heating limestone and clay leads to the formation of calcium silicates.
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Improved reactivity: Calcination can enhance the reactivity of materials by increasing their surface area or modifying their crystal structure. This is often employed in the preparation of catalysts, where calcination helps activate or stabilize the desired catalytic properties.
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Drying and moisture removal: Calcination is frequently used to remove moisture from substances by subjecting them to high temperatures. This process is employed in various industries, such as the drying of clay for ceramic production.
The specific temperature and duration of the calcination process depend on the material being treated and the desired outcome. By controlling these parameters, manufacturers can achieve the desired chemical, physical, or structural changes in the material.
Please contact our sales team today on 44 (0)1782 824453 or drop us an email to sales@therseruk.com
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