Published in
Royal Society of Chemistry, RSC Sustainability, 2(1), p. 251-260, 2023
DOI: 10.1039/d2su00033d
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Supercritical carbon dioxide/nitrogen/air extraction with multistage stripping enables selective recovery of rare earth elements from coal fly ashes
This paper is made freely available by the publisher.
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Abstract
Using supercritical fluids, our novel process selectively extracts rare earth elements from coal fly ashes that were previously considered as waste and an environmental threat.