Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 10, Issue 3, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2022.108004
Keywords
Electrochemistry; Deep eutectic solvents; Precious metals recovery
Categories
Funding
- CEA LITEN
- EE4Precious project [ANR-20-CE08-0035-01]
- Agence Nationale de la Recherche (ANR) [ANR-20-CE08-0035] Funding Source: Agence Nationale de la Recherche (ANR)
Ask authors/readers for more resources
This paper presents an electrochemical process using low viscous deep eutectic solvents for precious metals refining from E-waste recycling. The process achieves high metal recovery with minimal electrolyte degradation and solvent losses.
Precious metals (PM) refining from E-waste recycling are based on hazardous hydrometallurgical processes, including cyanide leaching for gold or aqua regia leaching for palladium, which generates an important wastewater production. In this paper, we present an electrochemical process, based on low viscous deep eutectic solvents ChCl:EG 1:2 and ChCl:EG 1:3. Au and Pd electrochemical leaching and deposition parameters, but also gold and palladium speciation were studied. A one-step ElectroLeaching-Electrochemical Deposition Process (ELECD) in a single cell is proposed with high faradic yield of metal recovery. This process avoids electrolyte degradation and is advantageous to limit solvent losses and workers exposition.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available