In his statement, Stauber says his bill would reinstate mineral leases in the area, describing that Biden's decision to ...

U.S. Rep. Betty McCollum (D-Minn.) reintroduced a bill on Jan. 21 to ban sulfide-ore copper mining in the Boundary Waters ...

According to Still Bright, sulfide ore is first soaked in liquid vanadium, separating the copper from its other elements. Then, the solution is sent through an electrolyzer to collect the pure copper.

Zinc mostly occurs as sulfide ores, which are heated in air to convert them to zinc oxide. Molten close moltenA term used to describe a liquid substance (eg rock, glass or metal) formed by heating ...

Mining for copper, nickel and other heavy metals is often referred to as “sulfide mining,” because these metals are found bonded to sulfur in sulfide ores. Mining proposals in the region would produce ...

Zinc sulfide concentrate leaching processes are essential for extracting zinc from its ores, particularly in the context of sustainable and efficient mining practices. Recent research has focused ...

Mining for copper, nickel and other heavy metals is often referred to as “sulfide mining,” because these metals are found bonded to sulfur in sulfide ores. Mining proposals in the region would produce ...