| Title | Electrochemical approaches for selective recovery of critical elements in hydrometallurgical processes of complex feedstocks |
|---|---|
| ID_Doc | 7371 |
| Authors | Kim, K; Candeago, R; Rim, G; Raymond, D; Park, AHA; Su, X |
| Title | Electrochemical approaches for selective recovery of critical elements in hydrometallurgical processes of complex feedstocks |
| Year | 2021 |
| Published | Iscience, 24, 5 |
| Abstract | Critical minerals are essential for the ever-increasing urban and industrial activities in modern society. The shift to cost-efficient and ecofriendly urban mining can be an avenue to replace the traditional linear flow of virgin-mined materials. Electrochemical separation technologies provide a sustainable approach tometal recovery, through possible integration with renewable energy, the minimization of external chemical input, as well as reducing secondary pollution. In this review, recent advances in electrochemically mediated technologies for metal recovery are discussed, with a focus on rare earth elements and other key criticalmaterials for the modern circular economy. Given the extreme heterogeneity of hydrometallurgically-derived media of complex feedstocks, we focus on the nature of molecular selectivity in various electrochemically assisted recovery techniques. Finally, we provide a perspective on the challenges and opportunities for process intensification in critical materials recycling, especially through combining electro-chemical and hydrometallurgical separation steps. |
| http://www.cell.com/article/S2589004221003424/pdf |
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