Nonaqueous Solvent Extraction for Enhanced Metal Separations: Concept, Systems, and Mechanisms.

ABSTRACT: Efficient and sustainable separation of metals is gaining increasing attention, because of the essential roles of many metals in sustainable technologies for a climate-neutral society, such as rare earths in permanent magnets and cobalt, nickel, and manganese in the cathode materials of lithium-ion batteries. The separation and purification of metals by conventional solvent extraction (SX) systems, which consist of an organic phase and an aqueous phase, has limitations. By replacing the aqueous phase with other polar solvents, either polar molecular organic solvents or ionic solvents, nonaqueous solvent extraction (NASX) largely expands the scope of SX, since differences in solvation of metal ions lead to different distribution behaviors. This Review emphasizes enhanced metal extraction an

SUBMITTER: Li Z 

PROVIDER: S-EPMC8662634 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature