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Rare earth elements application in agriculture [PDF]

open access: yesActa Agriculturae Serbica, 2023
Rare earth elements (REEs) are a group of chemical elements that include lanthanides as well as scandium and yttrium. Today REEs are used in various industries, such as agriculture where they are used as micro fertilizers and feed additives, the latter ...
Kastori Rudolf R.   +2 more
doaj   +1 more source

Wet gravity separation and froth floatation techniques for rare earth elements beneficiation from monazite ore in Jordan

open access: yesHeliyon, 2023
The demand for extracting Rare Earth Elements (REEs) from their deposits is growing significantly around the world since they are essential in many mature and growing industries.
Ahmad H. Alsabbagh, Rawan M. Mustafa
doaj   +1 more source

Rare earth elements in plastics [PDF]

open access: yesScience of The Total Environment, 2021
Because of their unique properties, rare earth elements (REEs), comprising the lanthanide elements plus Sc and Y, have a variety of integral applications in modern electronic equipment. Consequently, it has been suggested that REEs may act as contaminants of and tracers for recycled electrical and electronic plastics in consumer goods.
Andrew, Turner   +2 more
openaire   +2 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

Rare earth elements from waste

open access: yesScience 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   +6 more
openaire   +2 more sources

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

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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