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

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Апрель 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.

Язык: Английский

---

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

Chinese Chemical Letters, Год журнала: 2024, Номер unknown, С. 110698 - 110698

Опубликована: Ноя. 1, 2024

Язык: Английский

---

Research progress of rare earth (Ce, La, Sm)-based functional materials in catalytic CO2 reduction

Rare Metals, Год журнала: 2025, Номер unknown

Опубликована: Май 24, 2025

Язык: Английский

---

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, Год журнала: 2025, Номер 424, С. 127037 - 127037

Опубликована: Фев. 6, 2025

Язык: Английский

---

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

Опубликована: Янв. 1, 2025

Язык: Английский

---

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

Minerals Engineering, Год журнала: 2025, Номер 227, С. 109298 - 109298

Опубликована: Апрель 7, 2025

Язык: Английский

---

Selective Separation of Cerium from Lanthanum by In Situ Selective Electrochemical Oxidation and Extraction in a Continuous Microfluidic Cell

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 117001 - 117001

Опубликована: Май 1, 2025

Язык: Английский

---

Study on the Segmented Water Washing Strategy of Rare Earth Alkali Cake and the Resource Disposal of Alkaline Wastewater

Journal of Sustainable Metallurgy, Год журнала: 2025, Номер unknown

Опубликована: Май 12, 2025

Язык: Английский

---

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

Resources Conservation and Recycling, Год журнала: 2024, Номер 215, С. 108106 - 108106

Опубликована: Дек. 31, 2024

Язык: Английский

---

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

Materials, Год журнала: 2024, Номер 17(24), С. 6113 - 6113

Опубликована: Дек. 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.

Язык: Английский

---