calcination
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Calcination is thermal treatment of a solid chemical compound (e.g. mixed carbonate ores) whereby the compound is raised to high temperature without melting with a restricted supply of oxygen (i.e. gaseous O2 fraction of air), generally for the purpose of removing impurities or volatile substances and/or to induce thermal decomposition.
Wikidata facts
- Subclass of
- chemical process
- Image
- Прокаливание бактериологической петли.jpg
- Has use
- industrial manufacturing
Sources (2)
via Wikidata · CC0
~6 min read
Encyclopedic overview
7 sectionsContents
- Etymology
- Industrial processes
- Reactions
- Limestone calcination
- Oxidation
- Alchemy
- References
Calcination is thermal treatment of a solid chemical compound (e.g. mixed carbonate ores) whereby the compound is raised to high temperature without melting with a restricted supply of oxygen (i.e. gaseous O2 fraction of air), generally for the purpose of removing impurities or volatile substances and/or to induce thermal decomposition.
The root of the word calcination refers to its most prominent use, which is to remove carbon and oxygen from limestone (calcium carbonate) through applying heat to yield calcium oxide (quicklime). This calcination reaction (which is endothermic) is CaCO3(s) → CaO(s) + CO2(g).
Excerpted from Wikipedia’s “calcination” article, available under the CC BY-SA 4.0 licence.