AlCl3-assisted dissolution of NdCl3 in organic solvents for Nd refining

LiNO3-Supported Electrodeposition of Metallic Nd from Nd-Containing Solvate Ionic Liquid

“…DMI is a strong polar aprotic molecular solvent with a high dielectric permittivity (37.6 F m –1 ), excellent electrochemical stability, and strong ability to solvate inorganic and organic compounds. − It can be synthetized from carbon dioxide or waste plastics in an environmentally friendly manner and can thus be produced industrially on a large scale. Furthermore, Nd­(CF 3 SO 3 ) 3 with perfluorinated anions is a relatively inexpensive salt, is commercially available, and has appreciable solubility in conventional polar solvents and ILs.…”

“…To confirm this hypothesis, UV–vis and IR analyses of the various systems were performed to evaluate the effect of LiNO 3 on the changes in the overall microstructure of the system, as shown in Figure . The introduction of Nd­(CF 3 SO 3 ) 3 to DMI resulted in the appearance of four absorption peaks (349.4, 524.6, 583.4, and 745.3 nm) accompanied by characteristic satellite shoulders, which were ascribed to the hypersensitive transitions with the pronounced fine structure in the 4f 3 shell of Nd­(III) . Generally, the effect of the solvation environment can be assessed by comparing the intensities of certain bands arising from the overlapping of (non-)­hypersensitive transitions.…”

“…The introduction of Nd-(CF 3 SO 3 ) 3 to DMI resulted in the appearance of four absorption peaks (349.4, 524.6, 583.4, and 745.3 nm) accompanied by characteristic satellite shoulders, which were ascribed to the hypersensitive transitions with the pronounced fine structure in the 4f 3 shell of Nd(III). 31 Generally, the effect of the solvation environment can be assessed by comparing the intensities of certain bands arising from the overlapping of (non-)hypersensitive transitions. The addition of LiNO 3 resulted in the disappearance of some signals (those at 593.05 and 599.17 nm) and a change in the position of the shoulder peak from 574.7 to 576.2 nm.…”

Electrochemical Solvometallurgy Pathway for the Sustainable Recovery of Bulk Metallic Lithium

“…19 Therefore, identifying aprotic functional molecular liquids without the conventional shortcomings, including high volatility, toxicity, flammability, and low electrochemical stability, is important to the field of electrochemical solvometallurgy. 20 As opposed to ILs, many aprotic molecular liquids have rich categories, controllable quality, and capacity for large-scale industrial synthesis. They also have a strong operability and a shielding effect against the hydrogen evolution reaction, thereby facilitating the electrowinning of metals that are difficult to reduce in aqueous solutions.…”

“…That is, molecular liquids serve as the raw materials of ILs . Therefore, identifying aprotic functional molecular liquids without the conventional shortcomings, including high volatility, toxicity, flammability, and low electrochemical stability, is important to the field of electrochemical solvometallurgy . As opposed to ILs, many aprotic molecular liquids have rich categories, controllable quality, and capacity for large-scale industrial synthesis.…”