The Elements of Innovation Discovered
The Elements of Innovation Discovered
Metal Tech News- April 9, 2025
Freeport has already recovered 100,000 tons of copper using sulfide leaching and aims for 400,000 tons by 2030 – equivalent to a major copper mine's output and enough to wire millions of EVs.
Sulfide leaching may finally bring old copper mines back online by the successful extraction of hard-to-process waste rock.
A century-old copper mine in Morenci, Arizona – the largest in the U.S. – still holds nearly 10 million tons of copper trapped in waste rock. With conventional mining no longer viable there, Freeport-McMoRan is investing in sulfide leaching, an advanced chemical method to ext...
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