Researchers at Purdue University in the US have developed a new technology that promises to be a game-changer in the extraction of rare earths. In a paper published in the journal Green Chemistry, the scientists explain that the patented extraction and purifying processes use ligand-assisted chromatography and are shown to remove and purify rare earth metals from coal ash, recycled magnets and raw ore safely, efficiently and with virtually no detrimental environmental impact.
May 11, 2020