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Recovery of rare earth elements from Dicranopteris dichotoma by an enhanced ion exchange leaching process

Abstract : An original process aiming at selectively extracting REEs from the hyperaccumulator plant Dicranopteris dichotoma was developed. This process relies on an enhanced ion exchange leaching step carried out in 0.5 M nitric acid solution. Once ion exchange resin is transferred into a column, REEs purification is carried out by percolating successively three solutions through resin bed: two washing steps, with water and 0.75 M nitric acid to remove competing ions and one elution step using 3 M nitric acid. These operating conditions led to 81.4% REEs purity and 78% recovery.
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https://hal.univ-lorraine.fr/hal-01934580
Déposant : Marie-Odile Simonnot <>
Soumis le : lundi 26 novembre 2018 - 09:34:10
Dernière modification le : mardi 26 mai 2020 - 02:56:50

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Zeinab Chour, Baptiste Laubie, Jean Louis Morel, Yetao Tang, Rongliang Qiu, et al.. Recovery of rare earth elements from Dicranopteris dichotoma by an enhanced ion exchange leaching process. Chemical Engineering and Processing: Process Intensification, Elsevier, 2018, 130, pp.208 - 213. ⟨10.1016/j.cep.2018.06.007⟩. ⟨hal-01934580⟩

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