Molecules, Год журнала: 2024, Номер 29(21), С. 5065 - 5065
Опубликована: Окт. 26, 2024
Ion-adsorbing rare earth tailings (IRETs) contain a large amount of clay minerals, which are potential source silicon and aluminum for the preparation zeolite materials. The complexity tailings' composition impurity main difficulties in controllable zeolite. Herein, IRETs were treated by classification activation technology IRET-ZEO, was used removal heavy metal Pb
Язык: Английский
Mineral Processing and Extractive Metallurgy Review, Год журнала: 2025, Номер unknown, С. 1 - 24
Опубликована: Янв. 5, 2025
China, a key player in the global supply chain, exemplifies application of sophisticated rare earth processing technologies that markedly reduce environmental impact element extraction. The integration advanced flotation collectors and related reagents has been instrumental minimizing ecological footprints while enhancing recovery rates within industry. Case studies from Bayan Obo, Sichuan, South China underscore practical efficacy these reagents, leading to notable improvements performance process efficiency. Advocated is adoption green strategies, such as bioleaching, which further mitigate industry's impact. Through technological advancements commitment stewardship, poised lead industry sustainability set standard for responsibility.
Язык: Английский
Процитировано
1
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Minerals, Год журнала: 2025, Номер 15(3), С. 290 - 290
Опубликована: Март 12, 2025
Magnesium sulfate leaching of ionic rare earth ores is generally characterized by a smooth outflow curve, long time, and high impurity content in the leach liquor. To reveal law cations aluminum ions process magnesium sulfate, equilibrium kinetics experiments were carried out using ore samples five particle sizes (<0.10, 0.10–0.25, 0.25–0.50, 0.50–1.00, >1.00 mm). Furthermore, prediction models constants rate constructed based on ion-exchange theory. The results show that reactions decrease gradually with increase ion concentration, temperature, surface area particles. Moreover, constant data fitting. From experiment, there significant relationship between reaction exchange particles: larger size, smaller constant. Based kinetic test Arrhenius equation, frequency factors activation energies inversely analyzed through Chemistry Reaction Module COMSOL. energy for 10,743 J/mol 10,987 J/mol, respectively. model was obtained fitting data. full-grade are agreement predictions model, which verifies validity proposed model. This study can provide theoretical support improvement efficiency earths optimization process.
Язык: Английский
Процитировано
0
Journal of Rare Earths, Год журнала: 2025, Номер unknown
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Minerals, Год журнала: 2025, Номер 15(4), С. 367 - 367
Опубликована: Апрель 1, 2025
Referencing ion exchange applied in the extraction of ion-adsorption minerals, a mathematical model based on thermodynamic equilibrium has been researched and established to reveal represent chemical reaction between minerals leaching solution. Meanwhile, Python-based numerical solver developed programmed solve equations order achieve computational efficiency obtain an accurate Based simulation computation with model, effects solution concentration mineral grade distribution can be evaluated, validating set value 20 g/L for initial rate above 90% cut-off grade. Furthermore, integrated into system overall multi-field illustrating relationship extracted metal aqueous phase over time providing theoretical support engineering project.
Язык: Английский
Процитировано
0
Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132738 - 132738
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Journal of Cleaner Production, Год журнала: 2025, Номер unknown, С. 145630 - 145630
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Journal of Sustainable Metallurgy, Год журнала: 2025, Номер unknown
Опубликована: Май 12, 2025
Язык: Английский
Процитировано
0
Applied Biochemistry and Biotechnology, Год журнала: 2024, Номер unknown
Опубликована: Дек. 26, 2024
Язык: Английский
Процитировано
3
Molecules, Год журнала: 2024, Номер 29(21), С. 5065 - 5065
Опубликована: Окт. 26, 2024
Ion-adsorbing rare earth tailings (IRETs) contain a large amount of clay minerals, which are potential source silicon and aluminum for the preparation zeolite materials. The complexity tailings' composition impurity main difficulties in controllable zeolite. Herein, IRETs were treated by classification activation technology IRET-ZEO, was used removal heavy metal Pb
Язык: Английский
Процитировано
0