from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The process of calcining - heating a substance to a high temperature, but below its melting point, to bring about thermal decomposition.
from the GNU version of the Collaborative International Dictionary of English
- n. The act or process of disintegrating a substance, or rendering it friable by the action of heat, esp. by the expulsion of some volatile matter, as when carbonic and acid is expelled from carbonate of calcium in the burning of limestone in order to make lime.
- n. The act or process of reducing a metal to an oxide or metallic calx; oxidation.
from The Century Dictionary and Cyclopedia
- n. The act or operation of calcining, or expelling from a substance by heat some volatile matter with which it is combined, or which is the cementing principle, and thus reducing it to a friable state.
- n. In metallurgy: The operation of reducing a metal to an oxid or metallic calx: now called oxidation.
- n. The process of being calcined, or heated with access of air: nearly equivalent to roasting.
- n. The process of treating certain ores, especially of iron, for the purpose of making them more manageable in the furnace, nothing being taken from or added to the material thus treated. This is done with some Swedish iron ores.
- n. The reduction to ashes of combustible substances by burning; a turning into ashes by combustion.
- n. A calcined state or condition.
- n. A product of calcination, a calcinate.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the conversion of metals into their oxides as a result of heating to a high temperature
Sorry, no etymologies found.
The residue may remain as a powdery substance (a calx), in which case the process of roasting is termed calcination; or it may be a pasty mass or liquid.
But about half of the CO2 from cement cannot be eliminated - it is produced in the reaction, called calcination, that occurs as the limestone (which consists of calcium carbonate) is being burned.
A calcination facility there would help the company to be closer to suppliers and get customers in the Chinese market.
When measuring the carbon footprint of imported cement, regulators say they would count every part of the process, from mining to calcination to shipping.
Priestley interpreted them in terms of phlogiston — the hypothetical principle of flammability that was thought to give metals their luster and ductility and was widely used in the early eighteenth century to explain combustion, calcination, smelting, respiration, and other chemical processes.
Some are productions of the animal, others of the vegetable kingdom; fossils afford some, minerals others; some are useless without calcination, others will not bear the fire; some remain constant in their colors, and retain their proper hues; others, though brilliant at first, become after a while totally corrupted, and by their corruption injure or destroy their companions, which might otherwise have stood well.
Experiment 98 suggests a mechanism for the formation of color based in part on affinity and calcination.
An allied species is common on the coast of China, where the pearls are collected for export to India, to be reduced to lime by calcination for the use of luxurious betel-nut chewers.
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!
In combustion the fatty earth (terra pinguis) burns away, and in calcination it is driven off by the action of fire.