befine the terms pyrometallurgy
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Pyrometallurgy is the process of refining ores by heating to speed up the chemical rxns taking place by melting of the substance in presence of a reducing agent.
For Pyrometallurgy uh hv to keep two things in ur mind- one is heat and other is reducing agent.
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Pyrometallurgy, extraction and purification of metals by processes involving the application of heat. ... The most important operations are roasting, smelting, and refining. Roasting, or heating in air without fusion, transforms sulfide ores into oxides, the sulfur escaping as sulfur dioxide, a gas.
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