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Pyroprocessing (from Greek Πυρος = fire) is a process in which materials are subjected to high temperatures (typically over 800 °C, 1472 °F) in order to bring about a chemical or physical change. Pyroprocessing includes such terms as ore-roasting, calcination, and sintering. Equipment for pyroprocessing includes kilns, electric arc furnaces, and reverberatory furnaces.

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