Pyrometallurgy definitions

pī'rō-mĕt'l-ûr'jē
An ore-refining process, such as smelting, dependent on the action of heat.
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Metallurgy using high temperatures, as in roasting, smelting, etc., for the extraction of metals from their ores.
noun
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Any process that uses high temperatures to transform either metals or their ores.
noun
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