Electrochemical Recovery of Rare-Earth Elements from Coal Fly Ash Using Ionic Liquids as both Extractant and Electrolyte
Anuja Tripathi, Ting Liu, Joe F. Bozeman, Ching-Hua Huang, Xing Xie · 2026
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Description
Anuja Tripathi and colleagues demonstrated in 2026 a two-stage method for recovering rare-earth elements from coal fly ash with a reusable ionic liquid. Rare earths feed medical devices, electronics, and clean energy, yet mining them is damaging and extraction from ash is tricky. Their liquid first leaches the metals out of the ash, then serves as the bath for plating them onto an electrode.
Tuning the voltage changed which metals deposited first. At the gentlest setting, neodymium came out preferentially, with a strong separation advantage over the rest. Stronger voltage raised total recovery, bringing about half the neodymium and smaller shares of the others. The liquid was then regenerated and used again for another cycle. The authors present the loop as a feasible, lower-waste route into ash stockpiles.
Catalog record
| CREATOR | Anuja Tripathi, Ting Liu, Joe F. Bozeman, Ching-Hua Huang, Xing Xie |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |