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calcination |
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calcination (kăl'sənā`shən), in metallurgy metallurgy (mĕt`əlûr'jē), science and technology of metals and their alloys . ..... Click the link for more information. , process of heating solid material to drive off volatile chemically combined components, e.g., carbon dioxide. It is sometimes a step in the extraction of metals from ores. Calcination is distinguished from drying, in which mechanically held water is driven off by heating, and from roasting, in which a material is heated in the presence of air to oxidize impurities. Originally calcination meant the method of obtaining lime (calcium oxide) from limestone by heating it to drive off carbon dioxide. calcination [‚kal·sə′nā·shən] (chemical engineering) A process in which a material is heated to a temperature below its melting point to effect a thermal decomposition or a phase transition other than melting. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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After I have heard you myself, when the whole of my right side has been benumbed, going on with your master about combustion, and calcination, and calorification, and I may say every kind of ation that could drive a poor invalid distracted, to hear you talking in this absurd way about sparks and ashes |
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