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How is copper extracted from low grade copper ores? |
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Answer» Solution :Hydrometallurgy is used for the extraction of copper from low grade copper ores. It is leached out USING acid. The solution containing `Cu^(2+)` is treated with scrap iron, zinc or hydrogen gas. The reactions may be expressed as under. `Cu^(2+) (aq) +H_(2) (G) to Cu(s) +2H^(+) (aq)` `Cu^(2+) +FE (s) to Fe_(2) (aq) + Cu (s)`. |
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