Selective Adsorption of Rare Earth Elements by Zn-BDC MOF/Graphene Oxide Nanocomposites Synthesized via In Situ Interlayer-Confined Strategy DOI
Ziying Chen, Zhan Li, Jia Chen

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2022, Volume and Issue: 61(4), P. 1841 - 1849

Published: Jan. 19, 2022

Separation of rare earth elements has always been an urgent problem in the industry. Although a variety adsorption materials have developed for and separation elements, it is difficult to achieve high capacity selectivity from most them at same time. In this work, combine advantages good graphene oxide (GO) metal organic frameworks (MOFs), two-dimensional MOFs GO nanocomposite (2D Zn-BDC MOF/GO) were synthesized by solvothermal interlayer-confined strategy. The composite material maximum 344.48 mg/g ions, with Sc/Tm ≈ 529.57, Sc/Er 461.91, Sc/Y 445.70, Tm/Eu 4.55. This work brings us new route synthesize 2D MOF/GO their chemical engineering research.

Language: Английский

Recent advances in selective separation technologies of rare earth elements: a review DOI
Ziying Chen, Zhan Li, Jia Chen

et al.

Journal of environmental chemical engineering, Journal Year: 2021, Volume and Issue: 10(1), P. 107104 - 107104

Published: Dec. 29, 2021

Language: Английский

Citations

186
Research progress of rare earth separation methods and technologies DOI Open Access

Mory Traore,

Aijun Gong, Yiwen Wang

et al.

Journal of Rare Earths, Journal Year: 2022, Volume and Issue: 41(2), P. 182 - 189

Published: April 15, 2022

Language: Английский

Citations

121
Phosphogypsum circular economy considerations: A critical review from more than 65 storage sites worldwide DOI Creative Commons
Essaïd Bilal, Hajar Bellefqih,

Véronique Bourgier

et al.

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 414, P. 137561 - 137561

Published: May 23, 2023

Nearly 300 million t of phosphogypsum (PG) are produced every year as a byproduct from phosphate fertilizer production worldwide. Approximately 58% the PG stacked, 28% discharged in coastal waters and only 14% further processed. This critical review provides an overview physical-chemical properties sedimentary magmatic ore worldwide using various analytical tools. Results more than 25 years work on at École des Mines de Saint-Étienne presented critically discussed. In total samples 67 industrial storage sites around world synthesized under different conditions laboratory have been considered. The low radioactivity present (particularly rock) was identified main challenge to raw material construction. Water-soluble volatile chemical compounds were environmentally sound management. Although does (in most cases) not pose immediate threat environment authors recommend processing all instead storing or disposing it, eliminate potential long-term risks utilize relevant secondary resource.

Language: Английский

Citations

117
The recent progress of ion exchange for the separation of rare earths from secondary resources – A review DOI Creative Commons
Youssef El Ouardi, Sami Virolainen, Emile Salomon Massima Mouele

et al.

Hydrometallurgy, Journal Year: 2023, Volume and Issue: 218, P. 106047 - 106047

Published: March 7, 2023

The challenge towards modern technologies has been enquiring and culminating in the continuously expanding use of rare earth elements (REEs). non-renewable primary resources REEs such as bastnasite, monazite, xenotime, are 78% dominated by China, their exhaustive exploitation future availability have raised global concerns. recycling end-of-life (EOL) products containing earths, waste streams mining, metallurgical industry, also referred to secondary - therefore become an alternative. This, however, requires advanced separation extraction achieve high yields from raw materials purities recovered REEs. Hydrometallurgy, starting with leaching, having solvent solution purification step, employed worldwide for capturing resources, reported efficiencies. Among frequently used processes, ion exchange (IX) one potential method due its selectivity, simple maintenance, easy accessibility. This review briefly highlights updated separate sulfate-based solutions sources mostly focuses on systems. Significant benefits IX outlined, content this emphasizes that can still be efficient, economical, green enhanced sources.

Language: Английский

Citations

101
Green recovery of rare earth elements under sustainability and low carbon: A review of current challenges and opportunities DOI
Tong‐Tong Xu, Xudong Zheng,

Biao Ji

et al.

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 330, P. 125501 - 125501

Published: Oct. 30, 2023

Language: Английский

Citations

51
Material Design Strategies for Recovery of Critical Resources from Water DOI Creative Commons
Omar A. Kazi, Wen Chen,

Jamila G. Eatman

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(36)

Published: March 31, 2023

Abstract Population growth, urbanization, and decarbonization efforts are collectively straining the supply of limited resources that necessary to produce batteries, electronics, chemicals, fertilizers, other important products. Securing chains these critical via development separation technologies for their recovery represents a major global challenge ensure stability security. Surface water, groundwater, wastewater emerging as potential new sources bolster chains. Recently, variety material‐based have been developed employed separations resource in water. Judicious selection design materials tune properties targeting specific solutes is central realizing water source resources. Here, membranes, sorbents, catalysts, electrodes, interfacial solar steam generators demonstrate promise applications reviewed. In addition, perspective offered on grand challenges key research directions need be addressed improve practical viability.

Language: Английский

Citations

45
Highly efficient preparation of crystalline yttrium carbonate in sodium carbonate system: Formation and growth mechanism DOI
Hepeng Zhou, Jiangfeng Guo,

Guang‐Jie Zhu

et al.

Journal of Rare Earths, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 1, 2024

Language: Английский

Citations

34
Separation of heavy rare-earth elements by non-aqueous solvent extraction: Flowsheet development and mixer-settler tests DOI Creative Commons
Brecht Dewulf, Sofía Riaño, Koen Binnemans

et al.

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 290, P. 120882 - 120882

Published: March 19, 2022

The separation of rare-earth elements (REEs) is considered one the most challenging processes in solvent extraction. In recent years, non-aqueous extraction, a unit operation within solvometallurgy, has stepped into limelight as promising techniques for efficient REEs separation. this paper, hydroxide concentrate, originating from mining waste and containing mainly heavy (HREEs), was redissolved ethylene glycol + 10 vol% water, 0.43 mol L−1 HCl 0.8 NaCl. Based on batch experiments, conceptual flowsheet proposed HREEs 2 groups: thulium group (Tm, Yb Lu) dysprosium (Dy, Ho, Er Y). Continuous extraction tests lab-scale mixer-settlers were performed to confirm technical feasibility developed system, well identify resolve possible bottleneck points. Eventually, using only 16 stages mixer-settlers, purity elements, originally 34% 54%, respectively, reached 99.8% 98.7%, respectively. Further optimization remains necessary purification highly pure single REEs.

Language: Английский

Citations

41
Rare Earth Elements Recovery Using Selective Membranes via Extraction and Rejection DOI Creative Commons

Atiyeh Bashiri,

Arash Nikzad, Reza Maleki

et al.

Membranes, Journal Year: 2022, Volume and Issue: 12(1), P. 80 - 80

Published: Jan. 11, 2022

Recently, demands for raw materials like rare earth elements (REEs) have increased considerably due to their high potential applications in modern industry. Additionally, REEs' similar chemical and physical properties caused separation be difficult. Numerous strategies REEs such as precipitation, adsorption solvent extraction been applied. However, these various disadvantages low selectivity purity of desired elements, cost, vast consumption chemicals creation many pollutions remaining large amounts acidic alkaline wastes. Membrane technology (MST), an environmentally friendly approach, has recently attracted much attention the REEs. The by membranes usually occurs through three mechanisms: (1) complexation REE ions with extractant that is embedded membrane matrix, (2) on surface created-active sites (3) rejection or complex organic from membrane. In this review, we investigated effect mechanisms efficiency process. Finally, directions future studies were recommended at end review.

Language: Английский

Citations

40
Size Selective Ligand Tug of War Strategy to Separate Rare Earth Elements DOI Creative Commons
Katherine R. Johnson, Darren M. Driscoll, Joshua T. Damron

et al.

JACS Au, Journal Year: 2023, Volume and Issue: 3(2), P. 584 - 591

Published: Jan. 25, 2023

Separating rare earth elements is a daunting task due to their similar properties. We report "tug of war" strategy that employs lipophilic and hydrophilic ligand with contrasting selectivity, resulting in magnified separation target elements. Specifically, novel water-soluble bis-lactam-1,10-phenanthroline an affinity for light lanthanides coupled oil-soluble diglycolamide selectively binds heavy lanthanides. This two-ligand yields quantitative the lightest (e.g., La-Nd) heaviest Ho-Lu) lanthanides, enabling efficient neighboring in-between Sm-Dy).

Language: Английский

Citations

36