Results 11 to 20 of about 215,220 (287)

Rare Earth Element Deposits of Alkaline Igneous Rocks

Resources, 2017
Alkaline igneous complexes host deposits of rare earth elements (REE), which represent one of the most economically important resources of heavy REE and Yttrium (Y).
Jaroslav Dostal
doaj   +2 more sources

Quantifying the Tetrad Effect, Shape Components, and Ce–Eu–Gd Anomalies in Rare Earth Element Patterns

Mathematical Geosciences, 2021
Plots of chondrite-normalised rare earth element (REE) patterns often appear as smooth curves. These curves can be decomposed into orthogonal polynomial functions (shape components), each of which captures a feature of the total pattern. The coefficients
M. Anenburg, Morgan J. Williams
semanticscholar   +1 more source

Mineralization of the Bayan Obo Rare Earth Element Deposit by Recrystallization and Decarbonation

Economic Geology, 2022
The genesis of the Bayan Obo giant rare earth element (REE) deposit has been debated for several decades. Here, we report the isotopic effects of dynamic recrystallization in the H8 carbonatite, which is the principal ore carrier in the deposit.
Chun-wan Wei, Miao Deng, Cheng Xu, A. Chakhmouradian, Martin P. Smith, J. Kynický, Wen-lei Song, Wei Chen, B. Fu   +8 more
semanticscholar   +1 more source

Enhanced Electrical Performance of Monolayer MoS2 with Rare Earth Element Sm Doping

Nanomaterials, 2021
Rare earth (RE) element-doped two-dimensional (2D) transition metal dichalcogenides (TMDCs) with applications in luminescence and magnetics have received considerable attention in recent years.
Shijie Li, Shidai Tian, Yuan Yao, Meng-Dong He, Li Chen, Yan Zhang, J. Zhai   +6 more
semanticscholar   +1 more source

Study of microstructure and mechanical properties of Mg–3Y-1REmOn composites by Y-REmOn (RE=La, Ce, Sm, Gd) in-situ reaction

Journal of Materials Research and Technology, 2023
The expensive cost of master alloys for preparing high-performance Mg rare-earth alloys has prevented their large-scale production and application. This paper demonstrates that some inexpensive rare-earth oxides can replace the corresponding master ...
Liang Ren, Xiong Zhou, Tong Wang, Yinglong Li, Qichi Le, Qiyu Liao   +5 more
doaj   +1 more source

Technoeconomic Assessment of a Sequential Step-Leaching Process for Rare Earth Element Extraction from Acid Mine Drainage Precipitates

ACS Sustainable Chemistry and Engineering, 2021
Coal waste products have been studied as a new source of Rare Earth Elements (REEs) and other Critical Minerals (CM) essential for the development of renewable energy technologies, but the economic viability of these source materials is not well ...
Alison G. Fritz, Thomas J. Tarka, M. Mauter   +2 more
semanticscholar   +1 more source

Rare earth element mobility in and around carbonatites controlled by sodium, potassium, and silica

Science Advances, 2020
Rare earths concentrate by complexing with alkalis in carbonatite-derived hydrothermal fluids. Carbonatites and associated rocks are the main source of rare earth elements (REEs), metals essential to modern technologies.
M. Anenburg, J. Mavrogenes, C. Frigo, F. Wall   +3 more
semanticscholar   +1 more source

Effect of Rare Earth Element on Microstructure and Properties of in situ Synthesized TiB₂/Al Composites

Cailiao gongcheng, 2018
The effect of rare earth element Ce, Sc and Er on TiB2 particles and matrix alloy micros-tructure of TiB2/Al composites was studied with in situ synthesis method. It shows that the addition of rare earth element improves the microstructure and properties
QU Min, LIU Xin, CUI Yan, LIU Feng-bin, JIAO Zhi-wei, LIU Yuan   +5 more
doaj   +1 more source

Rare earth element contents, geochemistry of soil samples between Burdur and Isparta region and assessment of their origin

Bulletin of the Mineral Research and Exploration, 2020
This study was carried out in 5 locations between Burdur and Isparta in the inner southern part of Isparta Bend. The study aims to determine the rare earth element (REE) concentrations in the soil samples collected from the field and to interpret the ...
Ebru Tat, Mustafa Gurhan Yalcın
doaj   +1 more source

Rare earth elements from waste

Science Advances, 2022
Rare earth elements (REEs) are critical materials in electronics and clean technologies. With the diminishing of easily accessible minerals for mining, the REE recovery from waste is an alternative toward a circular economy. Present methods for REE recovery suffer from lengthy purifications, low extractability, and high wastewater streams.
Bing Deng, Xin Wang, Duy Xuan Luong, Robert A. Carter, Zhe Wang, Mason B. Tomson, James M. Tour   +6 more
openaire   +2 more sources