Sofía Riaño
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View article: Speciation of Chlorido Complexes of Rhodium(III) in Ethylene Glycol
Speciation of Chlorido Complexes of Rhodium(III) in Ethylene Glycol Open
The speciation of rhodium(III) chlorido complexes was investigated in ethylene glycol, in the presence and absence of lithium chloride, by rhodium-103 NMR and EXAFS spectroscopy. All major rhodium(III) complexes were identified based on th…
View article: Non-aqueous solvent extraction of cobalt and nickel using undiluted ionic liquids in milliflow contacting devices
Non-aqueous solvent extraction of cobalt and nickel using undiluted ionic liquids in milliflow contacting devices Open
sponsorship: The authors wish to acknowledge funding from the Research Foun-dation - Flanders (FWO) , project G0D7421N. (Research Foun-dation - Flanders (FWO)|G0D7421N)
View article: Conversion of Lithium Chloride into Lithium Hydroxide Using a Two-Step Solvent Extraction Process in an Agitated Kühni Column
Conversion of Lithium Chloride into Lithium Hydroxide Using a Two-Step Solvent Extraction Process in an Agitated Kühni Column Open
A significant consequence of the green transition is the growing demand of lithium-ion batteries (LIBs), as they are essential for electrical vehicles. In turn, the demand for the raw materials that are needed to produce LIBs is increasing…
View article: First economically and environmentally viable mobile commercial metallurgical plant based on advanced hydrometallurgical and electrochemical technologies able to produce cobalt metal from spent lithium-ion batteries
First economically and environmentally viable mobile commercial metallurgical plant based on advanced hydrometallurgical and electrochemical technologies able to produce cobalt metal from spent lithium-ion batteries Open
Background To counter climate change, it will be necessary to have a major transition of both energy and mobility systems. Electrification of mobility is one essential part of the solution. Nearly 65% of Cobalt is mined in Africa (e.g. Cen…
View article: First economically and environmentally viable mobile commercial metallurgical plant based on advanced hydrometallurgical and electrochemical technologies able to produce cobalt metal from spent lithium-ion batteries.
First economically and environmentally viable mobile commercial metallurgical plant based on advanced hydrometallurgical and electrochemical technologies able to produce cobalt metal from spent lithium-ion batteries. Open
Experimental data and profitability data.
View article: First economically and environmentally viable mobile commercial metallurgical plant based on advanced hydrometallurgical and electrochemical technologies able to produce cobalt metal from spent lithium-ion batteries.
First economically and environmentally viable mobile commercial metallurgical plant based on advanced hydrometallurgical and electrochemical technologies able to produce cobalt metal from spent lithium-ion batteries. Open
Experimental data and profitability data.
View article: Solvent Extraction Process for Refining Cobalt and Nickel from a “Bulk Hydroxide Precipitate” Obtained by Bioleaching of Sulfidic Mine Tailings
Solvent Extraction Process for Refining Cobalt and Nickel from a “Bulk Hydroxide Precipitate” Obtained by Bioleaching of Sulfidic Mine Tailings Open
sponsorship: This study received funding under the EU Framework Programme for Research and Innovation Horizon 2020, NEMO Project Grant Agreement No. 776846. This work reflects the authors' view, and the Agency is not responsible for any us…
View article: Refining of Palladium, Platinum, and Rhodium from a Pregnant Leach Solution of Spent Automotive Catalysts by Continuous Counter-Current Solvent Extraction with Ionic Liquids in Mixer-Settlers
Refining of Palladium, Platinum, and Rhodium from a Pregnant Leach Solution of Spent Automotive Catalysts by Continuous Counter-Current Solvent Extraction with Ionic Liquids in Mixer-Settlers Open
sponsorship: The research leading to these results received funding from the European Union's Horizon 2020 Research and Innovation program under Grant Agreement No. 730224 (PLATIRUS). This publication reflects only the authors' view, exemp…
View article: Recovery of Lithium from Simulated Nanofiltration-Treated Seawater Desalination Brine Using Solvent Extraction and Selective Precipitation
Recovery of Lithium from Simulated Nanofiltration-Treated Seawater Desalination Brine Using Solvent Extraction and Selective Precipitation Open
The world's seas and oceans contain vast amounts of lithium, but the low concentration hereof renders solvent extraction impractical for its recovery. By contrast, seawater desalination brine, after treatment by nanofiltration, contains a …
View article: Separation of cobalt and nickel via solvent extraction with Cyanex-272: Batch experiments and comparison of mixer-settlers and an agitated column as contactors for continuous counter-current extraction
Separation of cobalt and nickel via solvent extraction with Cyanex-272: Batch experiments and comparison of mixer-settlers and an agitated column as contactors for continuous counter-current extraction Open
sponsorship: The research leading to these results has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement no.776846 (NEMO). This publication reflects only the author's view, exempt…
View article: Extraction Behavior and Purification of Germanium Using an Undiluted Quaternary Ammonium Ionic Liquid in Combination with a Complexing Agent
Extraction Behavior and Purification of Germanium Using an Undiluted Quaternary Ammonium Ionic Liquid in Combination with a Complexing Agent Open
sponsorship: The authors thank the KU Leuven for financial support (project C24/18/042, ISOMER). Jakob Busse is thanked for his help with the Raman measurements. The Raman microscope was acquired via the FWO medium-scale research infrastru…
View article: Separation of heavy rare-earth elements by non-aqueous solvent extraction: Flowsheet development and mixer-settler tests
Separation of heavy rare-earth elements by non-aqueous solvent extraction: Flowsheet development and mixer-settler tests Open
The separation of rare-earth elements (REEs) is considered one of the most challenging processes in solvent extraction. In recent years, non-aqueous solvent extraction, a unit operation within solvometallurgy, has stepped into the limeligh…
View article: Continuous Counter-Current Ionic Liquid Metathesis in Mixer-Settlers: Efficiency Analysis and Comparison with Batch Operation
Continuous Counter-Current Ionic Liquid Metathesis in Mixer-Settlers: Efficiency Analysis and Comparison with Batch Operation Open
Following the initial cation formation, the synthesis of ionic liquids (ILs) often involves an anion-exchange or metathesis reaction. For hydrophobic ILs, this is generally performed through several cross-current contacts of the IL with a …
View article: Choline chloride–ethylene glycol based deep-eutectic solvents as lixiviants for cobalt recovery from lithium-ion battery cathode materials: are these solvents really green in high-temperature processes?
Choline chloride–ethylene glycol based deep-eutectic solvents as lixiviants for cobalt recovery from lithium-ion battery cathode materials: are these solvents really green in high-temperature processes? Open
The thermal decomposition of the choline chloride–ethylene glycol (ChCl : EG) deep-eutectic solvent (DES) is studied during the leaching of lithium cobalt oxide (LiCoO 2 ) at 180 °C.
View article: Recovery of cobalt from lithium-ion battery cathode material by combining solvoleaching and solvent extraction
Recovery of cobalt from lithium-ion battery cathode material by combining solvoleaching and solvent extraction Open
Intensified solvometallurgical process by combining solvoleaching and solvent extraction to recover cobalt from lithium cobalt oxide, in presence of current collectors aluminium and copper.
View article: Determination of Chlorides in Ionic Liquids by Wavelength Dispersive X-ray Fluorescence Spectrometry
Determination of Chlorides in Ionic Liquids by Wavelength Dispersive X-ray Fluorescence Spectrometry Open
The synthesis of ionic liquids (ILs) usually involves two steps: (i) quaternization of a precursor followed by (ii) a salt metathesis reaction to introduce the desired anion. A consequence of the second step is that most ILs still contain …
View article: Platinum Group Metals Recovery Using Secondary Raw Materials (PLATIRUS): Project Overview with a Focus on Processing Spent Autocatalyst
Platinum Group Metals Recovery Using Secondary Raw Materials (PLATIRUS): Project Overview with a Focus on Processing Spent Autocatalyst Open
PLATInum group metals Recovery Using Secondary raw materials (PLATIRUS), a European Union (EU) Horizon 2020 project, aims to address the platinum group metal (pgm) supply security within Europe by developing novel and greener pgm recycling…
View article: Dissolution behavior of precious metals and selective palladium leaching from spent automotive catalysts by trihalide ionic liquids
Dissolution behavior of precious metals and selective palladium leaching from spent automotive catalysts by trihalide ionic liquids Open
Trichloride ionic liquids were used to increase the leaching selectivity of palladium from spent automotive catalyst with a ceramic support.
View article: Solvometallurgical Recovery of Platinum Group Metals from Spent Automotive Catalysts
Solvometallurgical Recovery of Platinum Group Metals from Spent Automotive Catalysts Open
sponsorship: The research leading to these results received funding from the European Union's Horizon 2020 Research and Innovation program under Grant Agreement no. 730224 (PLATIRUS). This publication reflects only the authors' view, exemp…
View article: Extraction Behavior and Separation of Precious and Base Metals from Chloride, Bromide, and Iodide Media Using Undiluted Halide Ionic Liquids
Extraction Behavior and Separation of Precious and Base Metals from Chloride, Bromide, and Iodide Media Using Undiluted Halide Ionic Liquids Open
sponsorship: The authors thank the KU Leuven for financial support (Project C24/18/042, ISOMER). (KU Leuven|C24/18/042, (ISOMER))
View article: Separation of iron(<scp>iii</scp>), zinc(<scp>ii</scp>) and lead(<scp>ii</scp>) from a choline chloride–ethylene glycol deep eutectic solvent by solvent extraction
Separation of iron(<span>iii</span>), zinc(<span>ii</span>) and lead(<span>ii</span>) from a choline chloride–ethylene glycol deep eutectic solvent by solvent extraction Open
Deep eutectic solvents (DESs) were used as alternatives to the aqueous phase in solvent extraction of iron(iii), zinc(ii) and lead(ii).
View article: Recycling of bonded NdFeB permanent magnets using ionic liquids
Recycling of bonded NdFeB permanent magnets using ionic liquids Open
The polymeric binder of bonded NdFeB magnets can be dissolved in ionic liquids with strongly coordinating anions and the magnetic powder can be reused for manufacturing of new magnets.
View article: Solvometallurgical recovery of cobalt from lithium-ion battery cathode materials using deep-eutectic solvents
Solvometallurgical recovery of cobalt from lithium-ion battery cathode materials using deep-eutectic solvents Open
Solvometallurgical recovery of cobalt from lithium cobalt oxide by using a choline chloride–citric acid deep eutectic solvent (DES) in presence of aluminium and copper current collectors.
View article: Separation of precious metals by split-anion extraction using water-saturated ionic liquids
Separation of precious metals by split-anion extraction using water-saturated ionic liquids Open
Split-anion extraction with water-saturated ionic liquids is a benign, efficient and selective process for recovery of precious metals from chloride media.
View article: Dissolution of noble metals in highly concentrated acidic salt solutions
Dissolution of noble metals in highly concentrated acidic salt solutions Open
Highly concentrated solutions of AlCl3·6H2O and Al(NO3)3·9H2O are safer and more environmentally friendly alternatives to aqua regia for the dissolution of gold and platinum group metals (Pd, Pt, Rh).