Economical REES extraction from coal

A team of Penn State and US Department of Energy researchers claims it has found a cost-effective and environmentally friendly way to extract rare-earth elements (REES) from coal by-products

Rare-earth oxides. Image: Peggy Greb / USDA

05 February 2016
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Rare-earth elements are a set of seventeen metals - such as scandium, yttrium, lanthanum and cerium - necessary to produce high-tech equipment used in healthcare, transportation, electronics and

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