Highly efficient electroextraction of gold and simultaneous iodine regeneration using ionic liquid 1-ethyl-3-methylimidazolium dicyanamide
Separation and Purification Technology(2023)
Abstract
•[C2MIM][N(CN)2] ILs replace water-based electrolyte for Au electrodeposition.•ILs improve the current efficiency and avoid the electric energy consumption of HER.•Regenerated iodine was reused in cyclic leaching-electrodeposition to recover Au.•Applied potential, temperature and stirring speed were studied to improve diffusion.
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Key words
Electrodeposition,Ionic liquids,Carbon felt,Iodine,Gold recovery
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