| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Meux, Eric
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Electroleaching and electrodeposition of silver in ethaline 1 : 2 and propeline 1 : 3: transport properties and electrode phenomena†
- 2023Propeline: a green alternative to Ethaline for electrochemical recovery of precious metals
- 2023Propeline : a new candidate for precious metal recovery 3rd International Meeting on Deep Eutectic Systems, Lisbonne, 19-22 juin 2023
- 2022Coupling electrochemical leaching and electrodeposition in ionic solvents for critical and precious metals recovery
- 2021Mass transport in Ionic Solvents during electrodeposition of gold and palladium
- 2021Greening effect of slag cement-based concrete: Environmental and ecotoxicological impactcitations
- 2021Electrochemical recovery of precious metals in Ionic Liquid mixtures or Deep Eutectic Solvents
- 2018Recovery of Metals from Secondary Raw Materials by Coupled Electroleaching and Electrodeposition in Aqueous or Ionic Liquid Mediacitations
- 2017Electrochemical recovery of platinum from spent proton exchange membrane fuel cells using ionic liquid melts
- 2016Direct recovery of cadmium and nickel from Ni-Cd spent batteries by electroassisted leaching and electrodeposition in a single-cell processcitations
- 2015Electroassisted leaching of black mass solids from Ni–Cd batteries for metal recovery: Investigation of transport and transfer phenomena coupled to reactionscitations
- 2015End-of-life nickel-cadmium accumulators: characterization of electrode materials and industrial Black Masscitations
- 2001Recherche d’un procédé hydrométallurgique de valorisation des poussières d’aciérie électriquecitations
Places of action
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article
Direct recovery of cadmium and nickel from Ni-Cd spent batteries by electroassisted leaching and electrodeposition in a single-cell process
Abstract
The investigation was aimed at developing a new electrochemical process for recovery of nickel, cobalt and cadmium mainly present in the form of hydroxides in Ni–Cd batteries, in view to obtain, a solid residue composed of metal nickel and carbon, a pure cadmium-free solution of metal salts and metal cadmium. This process relies upon coupling leaching of the metal hydroxides by electrogenerated protons to electrodeposition in a single divided cell. The feasibility of the technique has been first demonstrated in a lab cell operated in batch mode: cadmium-free solution of nickel and cobalt cations could effectively be produced at the end of the 5-h run, with nearly complete leaching of the hydroxides and a current efficiency of the cathode near 73%: occurrence of side hydrogen evolution at the cathode reduced the efficiency during the last hour of the treatment because of insufficient amounts of Cd2 + cations. In a second test, the waste (called black mass) was added at regular intervals, in view to allowing more regular transfer rates of Cd2 + species to the cathode chamber. The more even profiles of concentrations allowed avoiding depletion of this cation, which resulted in higher current efficiency in cadmium deposition. The efficiency of fed-batch mode is finally discussed in relation to the compromise to be found between purity of the cadmium-free solution and current efficiency of cadmium