Results 1 to 10 of about 25,259 (119)

Significant Enrichment of Rare Earth Element Concentrations in Stream Sediments of Sharm El-Sheikh Area, Southern Sinai-Egypt: Geochemical Prospecting and Heavy Mineral Survey

Iraqi Geological Journal, 2023
Economic rare earth element bearing-heavy mineral accommodation in alluvial deposits (stream sediments) is a well-known process caused by varying rates of weathering and transportation of heavy minerals and sediments, which is significant in ...
Omnia Elsayed, Nahla Abd El Ghaffar , Abdel Moneim Mahmoud , Ismail Ismail   +3 more
doaj   +1 more source

Geochemical characteristics of rare earth elements in groundwater of Banji Coal Mine

能源环境保护, 2023
Rare earth elements possess stable and similar geochemical properties, making them widely utilized in the study of groundwater-aquifer interactions and geochemical processes.
DU Shaoneng, LI Haozhi, JIANG Zhaojing, CHU Chengxiang, HUANG Wendi, ZHENG Liugen*   +5 more
doaj   +1 more source

Refertilized continental root controls the formation of the Mianning–Dechang carbonatite-associated rare-earth-element ore system

Communications Earth & Environment, 2023
Rare earth element ore deposits associated with carbonatite derived from Earth’s mantle supply half of the world’s rare earth element. However, the formation of carbonatite and initial enrichment and transport of rare earth element in the mantle, is ...
Zeng-Qian Hou, Bo Xu, Haijiang Zhang, Yuan-Chuan Zheng, Rui Wang, Yan Liu, Zhuang Miao, Lei Gao, Zhidan Zhao, William L. Griffin, Suzanne Y. O’Reilly   +10 more
doaj   +1 more source

Fractionation and Distribution of Rare Earth Elements in Marine Sediment and Bioavailability in Avicennia marina in Central Red Sea Mangrove Ecosystems

Plants, 2021
Rare earth element fractionation and distribution in the coastal ecosystem have been of significant concern and are recognized worldwide as emerging micro-pollutants. However, unlike other metals such as trace elements, little is known about their uptake
Abdullahi Bala Alhassan, Mohammed Othman Aljahdali   +1 more
doaj   +1 more source

Prediction of Pr/Nd Element Content Based on One-Dimensional Convolution with Multi-Residual Attention Blocks

Applied Sciences, 2023
Insufficient color feature extraction can lead to poor prediction performance in rare earth element composition estimation. To address this issue, we propose a one-dimensional convolutional method for predicting rare earth element composition.
Fangping Xu, Jun Chen, Jianyong Zhu
doaj   +1 more source

Research Progress on Extraction Technology of Rare Earth Elementsfrom Coal Ash

Kuangchan zonghe liyong, 2023
This is an essay in the field of mining engineering. High-value utilization of rare earths in fly ash can effectively alleviate the environmental pollution caused by fly ash in my country, expand the supply chain of rare earth raw materials, and ensure ...
Zhijuan Gao, Xiangren Wang
doaj   +1 more source

On the Extraction of Rare Earth Elements from Geothermal Brines

Resources, 2017
The availability of rare earth elements from primary resources has come into question in the last two decades. This has sparked various government and industry initiatives to examine potential rare earth element resources apart from virgin ore bodies ...
York R. Smith, Pankaj Kumar, John D. McLennan   +2 more
doaj   +1 more source

Distribution Characteristics of Rare Earth Elements in Plants and Soils from the Bayan Obo Mining Area

Yankuang ceshi, 2019
BACKGROUND The Bayan Obo mining area is the main producing area of rare earth elements. During mining and refining, rare earth elements enter plants through migration and enrichment.
ZHANG Li-feng, LIU Jie-min, ZHANG Yi-ming   +2 more
doaj   +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

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