label: url

en: Hydrophobic deep eutectic solvents for the direct leaching of nickel laterite ores: Selectivity and reusability investigations

en: Separation and Purification Technology

ja: Separation and Purification Technology


en: Estimating the phase diagrams of deep eutectic solvents within an extensive chemical space

en: Assessing the formation of a deep eutectic solvent (DES) necessitates a solid-liquid equilibrium phase diagram. Yet, many studies focusing on DES applications do not include this diagram because of challenges in measurement, leading to misidentified eutectic points. The present study provides a practical approach for estimating the phase diagram of any binary mixture from the structural information, utilizing machine learning and quantum chemical techniques. The selected machine learning model provides reasonably high accuracy in predicting melting point (R = 0.84; RMSE = 40.53 K) and fusion enthalpy (R = 0.84; RMSE = 4.96 kJ mol) of pure compounds upon evaluation by test data. By pinpointing the eutectic point coordinates within an extensive chemical space, we highlighted the impact of the mole fractions and melting properties on the eutectic temperatures. Molecular dynamics simulations of selected mixtures at the eutectic points emphasized the pivotal role of hydrogen bonds in dictating mixture behavior.

en: Communications Chemistry

ja: Communications Chemistry


en: Amino Acid-Based Ionic Liquids as Biocompatible Extractants for Critical and Precious Metals

en: ACS Sustainable Chemistry & Engineering

ja: ACS Sustainable Chemistry & Engineering


en: Green Leaching of Metallic Platinum Using an Ionic Liquid with Synergistic Organic AcidChlorinating Agent Additives

en: Journal of Chemical Engineering of Japan


en: Effect of Hydrophobicity of Ionic Liquids on the Leaching Selectivity of Platinum from a Spent Automotive Catalyst

en: Solvent Extraction Research and Development, Japan


en: Amino Acid Leaching of Critical Metals from Spent Lithium-Ion Batteries Followed by Selective Recovery of Cobalt Using Aqueous Biphasic System

en: To reduce the exploitation of mine resources and decrease the harm to the environment caused by urban electronic wastes, the recovery of critical metals in secondary resources is crucial. In this study, we have successfully developed an eco-friendly process to integrate the leaching and separation of cobalt (Co) from a spent lithium-ion battery (LIB) cathode using an amino acid-based aqueous biphasic system (ABS). We, for the first time, demonstrated a simple method for leaching a LIB cathode using only amino acids. In addition, we have investigated the leaching mechanism using the typical cathode active material lithium cobalt oxide (LiCoO). Then, the Co was selectively extracted by a biphasic system (amino acid-PPG400-HO). This novel process has an excellent prospect in the field of spent-battery recycling because of its eco-friendly and process-simplified advantages.

en: ACS Omega

ja: ACS Omega


en: Novel Ionic Liquid-Based Aqueous Biphasic System with Amino Acids for Critical Metal Recovery from Lithium-Ion Batteries

en: Industrial & Engineering Chemistry Research


en: DFT-Based investigation of AmicAcid extractants and their application to the recovery of Ni and Co from spent automotive LithiumIon batteries


en: Selective recovery of gold from discarded cell phones by silk fibroin from Bombyx mori

en: Biochemical Engineering Journal

ja: Biochemical Engineering Journal


en: Cathode Recycling of Lithium-ion Batteries Based on Reusable Hydrophobic Eutectic Solvents

en: Green Chemistry

ja: Green Chemistry


en: An ionic liquid extractant dissolved in an ionic liquid diluent for selective extraction of Li(I) from salt lakes

en: Desalination

ja: Desalination


en: Recovery of platinum group metals from a spent automotive catalyst using polymer inclusion membranes containing an ionic liquid carrier

en: Journal of Membrane Science

ja: Journal of Membrane Science


en: Synergistic Deep Eutectic Solvents for Lithium Extraction

en: ACS Sustainable Chemistry & Engineering


en: LiquidLiquid Extraction of Cd(II) and Zn(II) Using a Novel Tetraalkylphosphonium-Based Ionic Liquid

en: Journal of Chemical Engineering of Japan


en: Selective Separation of Platinum Group Metals via Sequential Transport through Polymer Inclusion Membranes Containing an Ionic Liquid Carrier


en: Transport of Rhodium(III) from Chloride Media across a Polymer Inclusion Membrane Containing an Ionic Liquid Metal Ion Carrier.

en: Cl, and 20 wt % plasticizer 2-nitrophenyl octyl ether (2NPOE). The driving force for the Rh(III) transport was suggested to be the concentration difference of the chloride ion between the feed and the receiving solutions. More than 70% rhodium(III) could be recovered from the receiving solution, and no transport of iron(III) was observed; however, the two metal ions cannot be separated by liquid-liquid extraction. This is the first report of selective transport of rhodium(III) across a polymer inclusion membrane.

en: ACS Omega


en: Multifunctional Effect of the Polymer Extractant Thiomethylbenzoxazoyl-α-Methylstyrene on the Extraction of Au(III)

en: Solvent Extraction Research and Development, Japan