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By A.J. Roan
Metal Tech News 

DOE seeks unconventional critical minerals

Offers $156M to develop tech for critical minerals from waste Metal Tech News - September 21, 2022


Last updated 9/20/2022 at 2:14pm

A creek colored bright orange from metals dissolved in the acidic water.

United States Geological Survey

Acid mine drainage occurs when mining exposes sulfide-containing minerals, which react with air and water to form sulfuric acid. New technologies are being developed to recover valuable critical minerals from these acidic waters, cleaning them up in the process.

The U.S. Department of Energy announced $156 million in funding for a first-of-a-kind facility to extract and separate rare earth elements and critical minerals from unconventional sources like mining waste.

As rare earths and other critical minerals are key to manufacturing clean energy technologies here in America – such as solar panels, wind turbines, electric vehicles, and hydrogen fuel c...

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