Results 71 to 80 of about 132 (97)
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Hydrometallurgy, 2020
Abstract Rare earth (RE) with specific application value has become the relatively important strategic resource for all countries. Weathered crust elution-deposited rare earth ore (WCED-REO) are rich in middle-heavy RE, and its exploitation restrict the global supply of the middle-heavy RE.
Wenrui Nie +7 more
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Abstract Rare earth (RE) with specific application value has become the relatively important strategic resource for all countries. Weathered crust elution-deposited rare earth ore (WCED-REO) are rich in middle-heavy RE, and its exploitation restrict the global supply of the middle-heavy RE.
Wenrui Nie +7 more
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Swelling of clay minerals in ammonium leaching of weathered crust elution‐deposited rare earth ores
Rare Metals, 2017Abstract The effect of hydrated radius, cation valence, pH and solution concentration on the zeta potential of clay minerals was investigated, and the relation between zeta potential of clay minerals and swelling was discussed in different leaching agents as well.
Zhen‐Yue Zhang +5 more
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Role of minerals properties on leaching process of weathered crust elution-deposited rare earth ore
Journal of Rare Earths, 2015Abstract Granite belonged to intrusive rock and volcanic was extrusive rock. There may be many differences in their degree of weathering and mineral chemical composition. The present study investigated the minerals properties and the leaching mechanism of the granitic weathered crust elution-deposited rare earth ore from Longnan Rare Earth Mine area (
Yanfei XIAO +6 more
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Hydrometallurgy, 2010
Abstract In this paper, the kinetic of leaching rare earth from the weathered crust elution-deposited rare earth ores with ammonium sulfate solution was investigated. The effects of the main leaching parameters such as temperature and ore particle size on leaching process were examined and discussed in order to elucidate the kinetics and mechanism of
Tian Jun +5 more
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Abstract In this paper, the kinetic of leaching rare earth from the weathered crust elution-deposited rare earth ores with ammonium sulfate solution was investigated. The effects of the main leaching parameters such as temperature and ore particle size on leaching process were examined and discussed in order to elucidate the kinetics and mechanism of
Tian Jun +5 more
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Anti-swelling mechanism of DMDACC on weathered crust elution-deposited rare earth ore
Journal of Rare Earths, 2022Zhengyan He +6 more
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Effect of particle size on the leaching of a weathered crust elution-deposited rare earth ore
Hydrometallurgy, 2023Lingbo Zhou +5 more
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Chemosphere, 2018
High concentration of ammonium sulfate, a typical leaching agent, was often used in the mining process of the weathering crust elution-deposited rare earth ore. After mining, a lot of ammonia nitrogen and labile heavy metal fractions were residual in tailings, which may result in a huge potential risk to the environment.
Jie, Tang +5 more
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High concentration of ammonium sulfate, a typical leaching agent, was often used in the mining process of the weathering crust elution-deposited rare earth ore. After mining, a lot of ammonia nitrogen and labile heavy metal fractions were residual in tailings, which may result in a huge potential risk to the environment.
Jie, Tang +5 more
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Stepwise Anti-Impurity Leaching Rare Earth from Weathered Crust Elution-Deposited Rare Earth Ores
2023Zhengyan He +6 more
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Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023
Fang Zhou +7 more
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Fang Zhou +7 more
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