what is calcination ?
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Answers
Answer:
Calcination, the heating of solids to a high temperature for the purpose of removing volatile substances, oxidizing a portion of mass, or rendering them friable. Calcination, therefore, is sometimes considered a process of purification. Calcination. Heat-treating.
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Answer:
Calcination of an ore is done to :-
1. Convert of an ore into oxide
2. Remove moisture/water from the wet / hydrated ores.
3. Remove volatile impurities from the ore.
During calcination, the ore become porous and dry. For example, calamine ( a carbonate ore of zinc) when calcined decomposes to give zinc
What is meant by calcination?
Calcination is defined as "heating to high temperatures in air or oxygen". However, calcination is also used to mean a thermal treatment process in the absence or limited supply of air or oxygen applied to ores and other solid materials to bring about a thermal decomposition.
Calcination: The ore is heated to a high temperature below its melting point in the absence of air or in a limited supply of air. ... It makes the ore porous. For example, zinc carbonate decomposes to give zinc oxide and carbon dioxide.
Calcination, the heating of solids to a high temperature for the purpose of removing volatile substances, oxidizing a portion of mass, or rendering them friable. Calcination, therefore, is sometimes considered a process of purification.
Explanation:
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