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Showing 1 to 2 of 2 for “"refractory ore"”.
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Enhanced copper recovery from Chingola refractory ore
The Chingola Refractory Ore (CRO), in Zambia’s Copperbelt province, represents a significant copper resource, with more than 150 million tonnes in stockpiles since the 1950s. CRO contains 0.99 wt.% Cu, primarily in the form of cupriferous micas, with lesser amounts of copper found in malachite, …
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Biooxidation and Thiocyanate Leaching of Refractory Gold Ore in One-Step
Gold is among the precious metals and for more than a century, it has been extracted by the cyanidation process. Cyanide is highly toxic for humans and living organisms. Moreover, with increasing gold extraction over time, the average gold grade in minerals has decreased and simultaneously cyanide …