New separation methods aim to improve global rare earth supply

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Rare earth elements are essential for modern technology, but their similar chemistry makes separation difficult and expensive. Now researchers are exploring new technologies to streamline processing and bring down costs.

Rare earth elements are essential to technologies such as electric vehicles, wind turbines and smartphones, yet producing them remains costly, slow and concentrated in China. This article examines why the chemistry of rare earths makes separation so challenging and highlights new research into membranes, electrochemical systems and ionic liquids that could lower costs, boost efficiency and strengthen global supply chains.