Bastnaesite, monazite and xenotime are rare earth minerals (REMs) that typical sources for elements (REEs). To advance the understanding of their leaching precipitation behavior in different hydrometallurgical processes, Eh-pH diagrams were constructed modified using HSC 9.9 software. The aqueous stability H2O acid systems, i.e., REE-Ligands-H2O depicted studied based on diagrams. This study co...

The ability of organic matter as well as carbonate ions to extract rare earth elements (REEs) from sandy sediments of a Coastal Plain aquifer was investigated for unpurified organic matter from different sources (i.e., Mississippi River natural organic matter, Aldrich humic acid, Nordic aquatic fulvic acid, Suwannee River fulvic acid, and Suwannee River natural organic matter) and for extractio...

Given the geographical imbalance distribution and supply shortage of rare earth elements (REEs) in renewable energy processes, magnets, many high-tech technologies, etc., researchers are increasingly seeking to recover REEs from unconventional sources such as coal by-products. This article provides a brief overview mode occurrence its association coal. It also discusses existing potential benef...

Rare earth elements (REEs) including Scandium (Sc) are critical raw materials which greatly needed in the advancement of many modern technologies. Due to problems associated with primary extraction mining ores, procurement Sc and REEs from secondary resources currently explored adopting principle sustainability circular economy. Herein, for first time, Electrodialysis (ED) technology based on e...

The new process developed here consisting of sulfurization roasting transformation and water immersion can effectively realize the separation rare earth elements (REEs) impurities from spent Nd-Fe-B magnets. For industrial application process, it is critical to determine how economically efficiently prepare oxide (RExOy) products with higher purity obtained leaching solution. Therefore, accordi...

We studied the electronic structure of rare-earth ditelluride (ReTe2: Re = La, Pr, Sm, and Gd) using photoemission spectroscopy. From the x-ray photoelectron spectroscopy (XPS) study of the 3d core levels of rare-earth elements, we found that all the rare earth elements are trivalent. We have also made theoretical calculations using the Gunnarsson and Schönhammer approximation and multiplet cal...

A new method has been developed combining desolvating micronebulization with magnetic sector inductively coupled plasma mass spectrometry (ICPMS) for the analysis of all 14 stable rare earth elements (REEs) in small samples of marine particulate matter. Application is demonstrated for REEs in suspended particles from a deep ocean hydrothermal vent plume and a geological reference material. A 10...

The advent of rare earth elements (REEs) with optoelectronic properties has shifted the technology paradigm from digital to a smart and hybrid world. Their substantial uses also resulted in large piling up e-waste. Therefore, e-waste is now lucrative recycling target for recovery such critical raw materials. often challenged by dilute metal concentration, complex composition, difficult chemical...