Development of state-of-the-art selective adsorbent materials for recovery rare earth elements (REEs) is essential their sustainable usage. In this study, a metal-organic framework (MOF), MIL-101(Cr), was synthesized and post-synthetically modified with optimised loading the organophosphorus compounds tributyl phosphate (TBP), bis(2-ethylhexyl) hydrogen (D2EHPA, HDEHP) bis(2,4,4-trimethylpentyl...

A polymeric ion-exchange resin, incorporating methyl-amino-phosphonic (TP260) functionalities, and a solvent impregnated resin (SIR) tri-methylpentylphosphinic acid (TP272), were evaluated for the selective separation of Rare Earth Elements (REE) from Transition (TE), post -Transition (PTE), Alkaline (AE) in acidic mine waters (AMW). The influence functional groups nature acidity dependence stu...

In this work, hydrometallurgical recycling of metals from high-cobalt-content spent lithium-ion batteries (LIBs) laptops was studied using precipitation and solvent extraction as alternative purification processes. Large amounts cobalt (58% by weight), along with nickel (6.2%), manganese (3.06%) lithium (6.09%) are present in LiCoO2 Li2CoMn3O8 prominent Co-rich phases the electrode material. Th...

A novel solvent extraction scheme was developed for the processing of Co-rich lithium-ion battery (LIB) leachate to a Ni–Co–Mn (NCM) sulfate mixture that can be directly used in precursor synthesis LIB cathodes. Conventional hydrometallurgical recycling spent LIBs usually aims at separation Li, Ni, Co, and Mn into pure fractions, which is simplified here. Operating pH number stages each were ev...

Non-availability of rich primary resources rare earth metals (REMs) and the generation huge amounts discarded magnets containing REMs, compelled researchers to explore possibilities for recovery REMs from magnets. Therefore, present paper reports (Nd, Pr, Dy) Nd-Fe-B The process consists demagnetization, pre-treatment, hydrometallurgical processing recover as salt. Leaching studies indicate tha...