A common mineral hiding in plain sight could hold the key to making copper production cleaner, faster and more efficient, ...

By Tom Daly April 22 (Reuters) - China's exports of sulphuric acid to Chile dwindled to zero in March, Chinese customs data ...

This is anticipated to deliver an increase in copper recoveries to 87.6% at lower plant capital and processing costs. While more effective, the redesigned process plant is smaller in scale and ...

Copper smelting is an intricate high‐temperature process that converts copper concentrates into purer metallic copper through a series of chemical and thermal reactions. Central to modern smelting ...

DRAGOON, Ariz.—In the boulder-strewn desert east of Tucson, miners are using sulfuric acid and bacteria to bring online the first new U.S. copper production in more than a decade. The metal is coming ...