693.932 PEOPLE
| 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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Lapicque, François
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Propeline: a green alternative to Ethaline for electrometallurgy of precious metals ? ; Propeline: a green alternative to Ethaline for electrometallurgy of precious metals ?: The economical viability of WEEE (Waste from Electrical and Electronic Equipment) recycling is mainly based on the recovery of copper and precious metals. In this context, we aim at developing a green process for the recovery of silver, palladium, and gold from rich printed-circuit boards (cell phones, labtops…). The recovery will be conducted after the necessary stages of non-metallic materials removal and the beneficiation of less precious metals such as copper and nickel, carried out by Terra Nova Development (TND), our industrial partner.The process envisaged is based on electrometallurgy in “Deep eutectic solvents” (DES), a technology that can be considered as green alternative to conventional hydrometallurgy for precious metals recovery. Indeed, DES have a low reactivity and volatility, making them far less noxious to environment than corrosive liquors employed in conventional processes (cyanides, aqua regia). In particular, the DES named Ethaline (choline chloride-ethylene glycol mixture) has been widely used in electrometallurgy, because of its acceptable viscosity and the presence of substantial Cl- concentration leading to a high solubility of numerous metallic compounds. However, if choline chloride (ChCl) can be considered as a “green” reactant, ethylene glycol (EG) is known to be harmful to men and animals in case of repeated exposure or inhalation periods. Comparable DES with a lower toxic nature than Ethaline can be obtained by replacing EG by other glycols e.g. propylene glycol (PG), widely used in cosmetics and pharmacology, with costs comparable to those of EG: The resulting DES is named Propeline. We will present the potential of this less known DES in the recovery of precious metals. Because the change in the hydrogen bond donor with PG leads to a modification of the DES bulk properties, the first part of this work deals with the determination of Propeline density, viscosity, conductivity and electrochemical stability, which are properties of interest for electrochemical processes. The influence of water content on these properties was thoroughly investigated. Values of the above property parameters are compared to those obtained with Ethaline as a reference DES. In a second part, we will present the performances of Propeline for the electrochemical leaching of Ag, Pd and Au. The performance of Propeline in leaching was evaluated in ambient atmosphere, i.e. in the presence of water at percent levels. Leaching efficiencies could be studied after thorough development of analytical procedures dedicated to elemental analysis e.g. ICP-EOS in DES. The speciation of leached metals was determined by use of cross-linked analysis, namely UV-vis, and EXAFS/XANES spectroscopic techniques, in both cases with comparison with those in Ethaline. Systems (leached metal species-DES) were then thoroughly studied by electrochemical methods. In particular, diffusion coefficients of the solvated metal species were determined by electrochemical transient and stationary techniques, in the aim of leached metal recovery by electrochemical deposition.
- 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
- 2021Metal-free nitrogen-doped graphenic materials as cathode catalysts for the oxygen reduction reaction in polymer electrolyte membrane fuel cellscitations
- 2019Pressure-based electrochemical impedance spectroscopy in polymer electrolyte membrane fuel cells: the role of outlet backpressure
- 2018Recovery of Metals from Secondary Raw Materials by Coupled Electroleaching and Electrodeposition in Aqueous or Ionic Liquid Mediacitations
- 2016Direct recovery of cadmium and nickel from Ni-Cd spent batteries by electroassisted leaching and electrodeposition in a single-cell processcitations
- 2016Treatment of highly concentrated tannery wastewater using electrocoagulation: Influence of the quality of aluminium used for the electrodecitations
- 2016Removal of reactive textile dye from aqueous solutions by electrocoagulation in a continuous cellcitations
- 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
- 2015Removal of reactive textile dye from aqueous solutions by electrocoagulation in a continuous cellcitations
- 2014Current density distribution and gas volume fraction in the gap of lantern blade electrodescitations
- 2014Current density distribution and gas volume fraction in the gap of lantern blade electrodescitations
- 2014Hydrodynamics of gas bubbles in the gap of lantern blade electrodes without forced flow of electrolyte: Experiments and CFD modellingcitations
- 2014Hydrodynamics of gas bubbles in the gap of lantern blade electrodes without forced flow of electrolyte: Experiments and CFD modellingcitations
- 2014Electrochemical Impedance Model of a (Low-cost) Dye-Sensitized Solar Cell
- 2013Highlights during the development of electrochemical engineeringcitations
- 2012Aging of polymer electrolyte membrane fuel cells (PEMFC): general features and investigation of two typical examplescitations
- 2012Study of an electrocoagulation (EC) unit for the treatment of industrial effluent of Ouagadougou, Burkina Faso
- 2011Electrochemical treatment of dairy effluent using combined Al and Ti/Pt electrodes systemcitations
- 2011Electrocoagulation as a tertiary treatment for paper mill wastewater: Removal of non-biodegradable organic pollution and arseniccitations
- 2010Ageing of PEMFC's due to operation at low current density: investigation of oxidative degradationcitations
- 2010PEM fuel cell Pt anode inhibition by carbon monoxide: Non-uniform behaviour of the cell caused by the finite hydrogen excesscitations
Places of action
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