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Issue 3, 2016
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Rare earth recovery from end-of-life motors employing green chemistry design principles

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Abstract

This manuscript describes the development of an efficient process for the recovery of rare earth elements from materials mixtures such as in motors with a recovery rate of >80%. While heat treatment is required for processing, all other steps can be performed at room temperature, thus resulting in a process designed for energy efficiency. Selective dissolution enables efficient separation of steel and copper by taking advantage of the different reduction potentials of the materials in the mixture, while selective precipitation of RE salts is the key for obtaining pure RE products. Overall, the established process applies green chemistry principles for designing a hydrometallurgical process.

Graphical abstract: Rare earth recovery from end-of-life motors employing green chemistry design principles

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Publication details

The article was received on 08 Jun 2015, accepted on 07 Sep 2015 and first published on 07 Sep 2015


Article type: Paper
DOI: 10.1039/C5GC01255D
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Citation: Green Chem., 2016,18, 753-759

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    Rare earth recovery from end-of-life motors employing green chemistry design principles

    H. M. D. Bandara, K. D. Field and M. H. Emmert, Green Chem., 2016, 18, 753
    DOI: 10.1039/C5GC01255D

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