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Τι (ποιος) είναι calcine - ορισμός

MANUFACTURING PROCESS

Calcine; Calcining; Calcinated; Calcined; Calcine dust; Calciner; Calcinator

Calcine

·vi To oxidize, as a metal by the action of heat; to reduce to a metallic calx.

II. Calcine ·vi To be converted into a powder or friable substance, or into a calx, by the action of heat.

III. Calcine ·vi To reduce to a powder, or to a friable state, by the action of heat; to expel volatile matter from by means of heat, as carbonic acid from limestone, and thus (usually) to produce disintegration; as to, calcine bones.

calcine

v. a.

Burn, reduce to ashes, powder.

calcine

['kals??n, -s?n]

¦ verb [usu. as adjective calcined] reduce, oxidize, or desiccate by roasting or strong heat.

Derivatives

calcination noun

Origin

ME: from med. L. calcinare, from late L. calcina 'lime', from L. calx, calc- (see calx).

Βικιπαίδεια

Calcination

Calcination refers to thermal treatment of a solid chemical compound (e.g. mixed carbonate ores) whereby the compound is raised to high temperature without melting under restricted supply of ambient oxygen (i.e. gaseous O₂ fraction of air), generally for the purpose of removing impurities or volatile substances and/or to incur thermal decomposition.

The root of the word calcination refers to its most prominent use, which is to remove carbon from limestone (calcium carbonate) through combustion to yield calcium oxide (quicklime). This calcination reaction is CaCO₃(s) → CaO(s) + CO₂(g). Calcium oxide is a crucial ingredient in modern cement, and is also used as a chemical flux in smelting. Industrial calcination generally emits carbon dioxide (CO₂), making it a major contributor to climate change.

A calciner is a steel cylinder that rotates inside a heated furnace and performs indirect high-temperature processing (550–1150 °C, or 1000–2100 °F) within a controlled atmosphere.

https://en.wikipedia.org/wiki/Calcination