Volume 93 Issue 23 | p. 24 | Concentrates
Issue Date: June 8, 2015

A New Degree Of Separation For Rare-Earth Metals

Recycling: Chemists design and prepare a nitroxide ligand that selectively binds neodymium over dysprosium to recover the metals
Department: Science & Technology
News Channels: Materials SCENE, Environmental SCENE, Organic SCENE
Keywords: rare earth, recycling, chelator

Rare-earth metals are important for making many electronic devices and permanent magnets, yet commodity amounts of the elements can be in short supply. This situation has prompted metal suppliers to ramp up recycling of consumer products as an alternative to mining. To that end, chemists have developed several approaches for separating mixtures of rare-earth metals so they can be reblended in the necessary proportions for different applications. In the latest example, . . .

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