The effect of CaO/Al2O3 and SiO2 on the structure and properties of rare earth bearing-aluminosilicate system: A molecular dynamic study

Journal of Molecular Liquids, Journal Year: 2025, Volume and Issue: 424, P. 127037 - 127037

Published: Feb. 6, 2025

Language: Английский

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Implementing Ln(Oh)2(Ch3coo)·Xh2o as a Precursor for Reducing Carbon Emissions in Rare Earth Metallurgy

Published: Jan. 1, 2025

Language: Английский

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Study on the mechanism of hydrogen-based mineral phase transformation to enhance the grinding characteristics of Bayan Obo polymetallic ore

Minerals Engineering, Journal Year: 2025, Volume and Issue: 227, P. 109298 - 109298

Published: April 7, 2025

Language: Английский

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Enhancing Magnetic Contrast through Mineral Phase Transformation: Flotation Performance of Bastnaesite-Transformed Products

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

With resource depletion, the integrated utilization of low-grade rare-earth ores has garnered widespread focus. However, conventional beneficiation processes are unable to efficiently recover valuable components. This study provides a mineral phase transformation (MPT) strategy enhance separation by amplifying magnetic contrast between bastnaesite and iron minerals. Roasting was conducted on single bastnaesite, bastnaesite-hematite mixed minerals, Bayan Obo polymetallic ore (BOLPO). The effect MPT subsequent flotation explored. Relevant analytical tests were employed examine surface property changes during MPT, elucidating behavior products. results showed that improved contrast, yielding favorable indices for iron. Furthermore, products recovered using benzohydroxamic acid (BHA). For BOLPO, produced concentrate with 61.69% grade 84.24% recovery, while open-circuit yielded 60.46% REO 50.78% recovery. During experienced oxidation decomposition, cerium reduction, reoxidation, forming roasting Ce7O12 CeF3. Ce(IV) partially reduced Ce(III), performance reduction affected oxygen vacancies specific area. Oxygen increased hydrophilicity BHA consumption. Conversely, decreased area enhanced hydrophobicity, lowering depletion. In adsorption filled vacancies, further declining insights into comprehensive ores.

Language: Английский

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Recent achievements in rare earth modified metal oxides for environmental and energy applications: A review

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 110698 - 110698

Published: Nov. 1, 2024

Language: Английский

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Closing the Loop: Solid Oxide Fuel and Electrolysis Cells Materials for a Net-Zero Economy

Materials, Journal Year: 2024, Volume and Issue: 17(24), P. 6113 - 6113

Published: Dec. 13, 2024

Solid oxide fuel cells (SOFCs) and solid electrolyzer (SOECs) represent a promising clean energy solution. In the case of SOFCs, they offer efficiency minimal to zero CO2 emissions when used convert chemical into electricity. When SOFC systems are operated in regenerative mode for water electrolysis, SOFCs become (SOECs). The problem with these is supply availability raw materials SOEC components. This raises significant economic challenges has an impact on price scalability technologies. Recycling that make up can alleviate by reducing dependence overall costs. From this point view, work perspective analysis examines current research recycling materials, highlighting potential paths towards circular economy. existing literature different approaches key components SOECs important. Mechanical separation techniques isolate components, along strategies like leaching or hydrometallurgical material characterization, ensure quality recycled reuse new important as well. By evaluating various methods recovered study aims provide valuable insights advancing sustainable economically viable technologies within net-zero framework.

Language: Английский

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A critical life cycle assessment of present and potential rare earth circularity routes from permanent magnets

Resources Conservation and Recycling, Journal Year: 2024, Volume and Issue: 215, P. 108106 - 108106

Published: Dec. 31, 2024

Language: Английский

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Enhanced rare earth alkali cake washing and alkaline wastewater disposal via mineral phase transformation and ultrasound

Minerals Engineering, Journal Year: 2024, Volume and Issue: 219, P. 109080 - 109080

Published: Oct. 31, 2024

Language: Английский

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The Position of China in Neodymium Utilization: Trend and Challenges

ACS Sustainable Resource Management, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

The rare-earth industry plays a promising role in the promotion of low-carbon technologies, which are anticipated as foremost nominees for development green civilization. Among valuable elements, neodymium (Nd) is one extensively diffused metals production high-tech and clean-energy equipment due to its strong light magnetic properties. China has already acquired principal place Nd supply global market, becoming successful competitor with higher level utilization capacity country face growing demand. Previous literature provided some information on substance flow few recent years; however, they often fail interpret better penetration about current Chinese position industry. Therefore, this study attempts give detailed examination emergence inside framework special emphasis challenges prospective. As frontrunner production, responsible over 95% supply, having good market also. It important note that recycling crucial reducing carbon emissions by lessening demand raw material extraction supporting growth technologies. Finally, it vital strengthen country's regulations policies minimize negative environmental consequences protect societal values.

Language: Английский

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Strain-induced effects on the physical properties of rare-earth magnetic oxides RMO3 (R= La, Pr; M = Fe, Mn); via first principles

Materials Science in Semiconductor Processing, Journal Year: 2024, Volume and Issue: 188, P. 109153 - 109153

Published: Dec. 1, 2024

Language: Английский

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