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Published in 2019 at "Journal of Material Cycles and Waste Management"
DOI: 10.1007/s10163-019-00907-4
Abstract: Ionic liquids (ILs) have been extensively used for separation. However, most of the current reported undiluted IL-based extraction systems still suffer some issues, such as, the heavy loss and a slower extraction kinetic. In this…
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Keywords:
p666;
lamp phosphors;
rare earths;
p666 no3 ... See more keywords
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Published in 2021 at "Applied Geochemistry"
DOI: 10.1016/j.apgeochem.2021.105025
Abstract: Abstract Reference material BCR-670 (Lemna minor, “duckweed”) is one of the very few plant reference materials for which certified data for all rare earths and yttrium (REY) are available. However, biological samples like plants or…
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Keywords:
trace elements;
rare earths;
bcr 670;
reference ... See more keywords
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Published in 2020 at "Ceramics International"
DOI: 10.1016/j.ceramint.2020.01.020
Abstract: Abstract Single-phase BST-BCT ceramic doped with different rare-earth materials (La, Gd, Dy, and Yb) have been prepared using a modified mechano-chemical activation technique. The modified BaTiO3 doped with different rare-earths elements have manifested improved characteristics…
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Keywords:
rare earths;
change;
doped batio3;
effect ... See more keywords
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Published in 2020 at "Ceramics International"
DOI: 10.1016/j.ceramint.2020.07.118
Abstract: Abstract Rare earths (Res) doped Mn spinel nanoferrites with nominal composition MnR0.2Fe1·8O4 (REs = Tb, Pr, Ce, Y and Gd) were synthesized using sol gel method. FTIR, XRD and FESEM were employed to evaluate the structure, phase,…
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Keywords:
high frequency;
rare earths;
earths res;
res doped ... See more keywords
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Published in 2018 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2018.06.032
Abstract: A radiological evaluation associated to the future mining of grey monazite nodules enriched in light rare-earths, from a modest superficial deposit located in the centre of Spain, has been performed at pre-operational level, and the…
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Keywords:
grey monazite;
rare earths;
radiological evaluation;
centre spain ... See more keywords
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Published in 2017 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2017.07.006
Abstract: Abstract The colloidal sediment phase rare earth was little leached even if the pH of leaching agent reached 1.00, but part of it could be reduction leaching by the ferrous ion. To solve the problems…
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Keywords:
rare earths;
rare earth;
ascorbic acid;
compound leaching ... See more keywords
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Published in 2020 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2020.105253
Abstract: Abstract The present work describes a process to recover rare earth elements (REEs) by selective precipitation with ammonia from phosphogypsum (PG) waste, a by-product of the phosphate industry. A pretreatment step was carried out with…
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Keywords:
recovery;
sulfuric leach;
liquor;
rare earths ... See more keywords
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Published in 2020 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2020.105358
Abstract: Abstract It is very important to efficiently extract Ta, Nb and rare earths from polymetallic ore such as fergusonite. A new method combining an alkaline leaching of sub-molten salt (SMS) and an acid leaching is…
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Keywords:
earths fergusonite;
rare earths;
sub molten;
molten salt ... See more keywords
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Published in 2021 at "Journal of materials research and technology"
DOI: 10.1016/j.jmrt.2021.07.142
Abstract: Abstract The effects of Ce–Dy co-doping on the crystal structure, optical, dielectric, magnetic properties, and hyperfine interactions of Ni–Co spinel ferrite microspheres synthesized hydrothermally have been studied. A series of ferrites with the general formula…
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Keywords:
rare earths;
effects rare;
nico ferrite;
spinel ferrite ... See more keywords
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Published in 2019 at "Journal of Rare Earths"
DOI: 10.1016/j.jre.2018.07.013
Abstract: Abstract Synergistic extraction of heavy rare earths (REs) were investigated in chloride media by the mixture of (2-ethylhexylamino)methyl phosphonic acid mono-2-ethylhexyl ester (HEHAMP) and 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester (HEHEHP). The maximum synergistic enhancement coefficients…
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Keywords:
heavy rare;
hehehp;
rare earths;
extraction heavy ... See more keywords
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Published in 2019 at "Journal of Rare Earths"
DOI: 10.1016/j.jre.2018.08.006
Abstract: Abstract The separation and extraction of associated rare earths from the Zhijin phosphorite mine is of great interest. Based on previous studies, the hydrolysis of phosphate ore using hydrochloric acid was systematically studied through extensive…
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Keywords:
earths zhijin;
rare earths;
using hydrochloric;
hydrochloric acid ... See more keywords