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This page looks at the extraction of copper from its ores, its purification by electrolysis, and some of its uses. ... An overall equation for this series of steps is:.

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228.1, 240.0, 255.2, 254.6, (P) 260.8, (P) 251.7, (P) 268.2, (P) 279.2. Copper ores. 2015. Jump to page with historical data. 322.1, 303.1, 326.5, 331.1, 343.2...

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In the short term, copper mines and mills vary output by increasing the number of .... The covariance model was also used to estimate the mining cost equations.

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