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How is leaching carried out in case of low grade copper ores?

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asked Dec 22, 2017 in Chemistry by sforrest072 (157,439 points) ● 61 ● 410 ● 948
How is leaching carried out in case of low grade copper ores?

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answered Dec 22, 2017 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Dec 22, 2017 by sforrest072
 
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In case of low grade copper ores, leaching is carried out using acid or bacteria in the presence of air. In this process, copper goes into the solution as Cu2+ ions.

The resulting solution is treated with scrap iron or H2 to get metallic copper.

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