Mining waste could provide a reliable supply of rare earth elements, including neodymium and dysprosium, from a type of mining waste called phosphogypsum – a product of making phosphoric acid from phosphate rock for fertilisers – according to the Idaho National Laboratory (INL). More than a billion tons if such waste is sitting idle in the ...
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from Electronics Weekly https://www.electronicsweekly.com/news/research-news/bacteria-extract-rare-earths-mining-waste-2019-03/
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