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Rare Earth Elements [PDF]

open access: yesProfessional Paper, 2017
This chapter investigates the current rare earth elements trade in the Asia-Pacific Region. It begins by noting the elements that fall within this category of minerals, noting their rarity. It then looks at the trade in the commodity and some of the issues associated with its supply chain.
Bradley S. Van Gosen   +4 more
  +4 more sources

Examples of tetrad effect in lanthanides in natural systems [PDF]

open access: yesGeologia USP. Série Científica, 2014
The irregular patterns of rare earth elements, caused by the tetrad effect are revised and discussed in this work, covering its concept and subdivision into M and W types, quantification and the mechanisms that led to its occurrence in magmatic ...
Lauro Valentim Stoll Nardi   +2 more
doaj   +1 more source

Determination of Rare Earth Elements in Coal-related Samples by Inductively Coupled Plasma-Mass Spectrometry with Acid Dissolution

open access: yesYankuang ceshi, 2023
BACKGROUNDCoal and coal-bearing rock series can enrich beneficial elements such as rare earth under specific geological conditions, forming coal-related key metal deposits.
Xin ZHANG   +6 more
doaj   +1 more source

Lanthanides Release and Partitioning in Municipal Wastewater Effluents

open access: yesToxics, 2022
The use of lanthanides is increasing in our society, whether in communication technologies, transportation, electronics or medical imaging. Some lanthanides enter urban wastewater and flow through municipal wastewater treatment plants (WWTPs).
Patrice Turcotte   +3 more
doaj   +1 more source

Quantitative analysis of rare earth elements in Mg–Zn–RE(Ce, Y, Gd)–Zr alloy

open access: yesMaterials Research Express, 2022
The solid solution amount of rare earth elements and the mass fraction of compounds were measured by low-temperature phase separation technology, the existing forms of rare earth elements in ZK-RE(Ce, Y, Gd) alloy were quantitatively studied, and the ...
Yuguang Li   +4 more
doaj   +1 more source

Direct Recovery of the Rare Earth Elements Using a Silk Displaying a Metal-Recognizing Peptide

open access: yesMolecules, 2020
Rare earth elements (RE) are indispensable metallic resources in the production of advanced materials; hence, a cost- and energy-effective recovery process is required to meet the rapidly increasing RE demand.
Nobuhiro Ishida   +7 more
doaj   +1 more source

Time resolved spectroscopy of the cool Ap star HD 213637 [PDF]

open access: yes, 2014
We present an analysis of high time resolution spectra of the chemically peculiar Ap star HD 213637. The star shows rapid radial velocity variations with a period close to the photometric pulsation period.
Balmforth   +44 more
core   +2 more sources

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

open access: yesPlants, 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   +1 more
doaj   +1 more source

Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus. [PDF]

open access: yes, 2019
Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Alvarez-Cohen, Lisa   +2 more
core   +1 more source

Rare earth elements in plants

open access: yesBiologia Plantarum, 2019
Since 1960, the positive effects of rare earth elements (REE) on crop physiology have been observed, and support for photosynthesis, biomass accumulation, secondary metabolites, or enzymes has been reported in 40% of studies.
M. Kovaříková   +2 more
doaj   +1 more source

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