Leaching Behaviour and Kinetic of Light and Heavy Rare Earth Elements (REE) from Zircon Tailings in Indonesia

Prameswara, Gyan; Trisnawati, Iga; Mulyono, Panut; Prasetya, Agus; Petrus, Himawan Tri Bayu Murti

doi:10.1007/s11837-021-04584-3

Cited by 18 publications

(5 citation statements)

References 43 publications

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“…Many authors assume that heterogeneous reaction kinetics for most of the metal's extraction process can be interpreted by using shrinking models. Of these, the shrinking core model (SCM) is the most used model for describing the kinetics in leaching processes [37][38][39][40][41][42][43][44]. In this case, the following steps are identified during the leaching: diffusion of the leaching agent through the thin liquid film surrounding the particle, diffusion of the leaching agent through the solid product layer, and reaction on the surface of the unreacted core.…”

Section: Kineticsmentioning

confidence: 99%

Acid Leaching of La and Ce from Ferrocarbonatite-Related REE Ores

Tamayo-Soriano,

Soria-Aguilar,

Picazo-Rodríguez

et al. 2024

Minerals

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Rare earth elements comprise a group of 17 chemically similar elements, which increases the difficulty of separating them by traditional methods. For this reason, hydrometallurgy has been the most used method. However, it is important to evaluate the efficiency of the leaching processes used because, in addition to depending on the operating parameters of the leaching, they also depend on the mineralogical composition of the sample. In the present work, the extraction of Ce and La contained in the ferrocarbonatite mineral from the north of Mexico was studied. For the leaching tests, several leaching agents were used (HCl, H2SO4, HNO3, and H3PO4 in different concentrations (0.5 [M], 1 [M], 1.5 [M]) and the temperature was modified to 20, 40, and 60 °C. A maximum recovery of 70% for Ce and La was obtained using HCl 1M in 4 h. The results of the kinetic study of the experiments showed that the best fitting model according to these kinetic models was the SCM controlled by a chemical reaction.

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Section: Kineticsmentioning

confidence: 99%

Acid Leaching of La and Ce from Ferrocarbonatite-Related REE Ores

Tamayo-Soriano,

Soria-Aguilar,

Picazo-Rodríguez

et al. 2024

Minerals

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“…When the source was changed to zircon tailings (from Indonesia), the process of leaching REEs was described using the kinetic model known as the Zhuravlev-Leshokin-Templeman model. 21 In yet another study, the dissolution process for Nd, Sm, and Dy from bentonite clay was determined to follow pseudo second-order kinetic model. 22 The leaching kinetics of rare earths has been demonstrated to follow SCM from mixed rare earth concentrate and waste cathode ray tube phosphors where in most of them it is governed by a chemical control mechanism.…”

Section: Literature Precedence Of Kinetic Mechanisms For Ree Leachingmentioning

confidence: 99%

“…The leaching process of REEs from fire clay seam coal was deduced to follow SCM with possibly a mixed control mechanism which could be a result of several heterogenous materials leaching simultaneously (Yang & Honaker, 2020). When the source was changed to zircon tailings (from Indonesia), the process of leaching REEs was described using the kinetic model known as the Zhuravlev‐Leshokin‐Templeman model 21 . In yet another study, the dissolution process for Nd, Sm, and Dy from bentonite clay was determined to follow pseudo second‐order kinetic model 22 .…”

Section: Introductionmentioning

confidence: 99%

Leaching of rare earth elements from coal ash using low molecular weight organocarboxylic acids: Complexation overview and kinetic evaluation

Banerjee

Chakladar

Chattopadhyay

et al. 2023

Int J of Chemical Kinetics

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The study of thermodynamics and kinetics of leaching rare earth elements (REEs) is a fundamental aspect in understanding the mechanism behind the leaching process. Leaching of REEs from coal ash with aqueous solution of organocarboxylic acid is a heterogeneous fluid‐particle system. In the present study, the leaching mechanisms of these three potential organocarboxylic acids, tartaric acid, lactic acid, and citric acid were examined over a range of temperature (30–90°C) at various leaching durations. The kinetic data thus obtained were found to follow deviation from the conventional shrinking core model (SCM). A mixed mechanism model was deduced to be the optimum fit to the data with high precision (R2 > 0.95) and desired graphical linearity with closer interception to the origin. Aluminosilicate matrix remained unaltered after acid treatment which is the unchanged core concluded as from the kinetic mechanism. Morphological analysis using Scanning Electron Microscope (SEM) and particle size determinations were suggestive of significant reduction in grain size post leaching with organocarboxylic acids, tartaric acid being the most effective of all.

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“…Indeed, most of its production (about 97%) is located in three countries (i.e., China, Russia, and Malaysia), though the reserves are more dispersed (50% of reserves being located in China, CIS countries, and USA) [ 1 ]. These characteristics (commune with the complete family of REEs), combined with the difficult substitutability of this metal, and the limited rate of recycling (evaluated as close to 10%) may explain the strong attention paid to the development of processes focused on the recovery of these strategic REEs (including cerium) from alternative resources, such as acid mine drainage (AMD) [ 2 ], marginal ores [ 3 ] and tailings [ 4 , 5 , 6 ], urban mines [ 7 ], and waste electric and electronic equipment (WEEEs) [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Cerium Sorption onto Urea-Functionalized Magnetite Chitosan Microparticles by Sorbent Sulfonation—Application to Ore Leachate

Hamza

Guibal²,

Abdel‐Rahman

et al. 2022

Molecules

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The recovery of strategic metals such as rare earth elements (REEs) requires the development of new sorbents with high sorption capacities and selectivity. The bi-functionality of sorbents showed a remarkable capacity for the enhancement of binding properties. This work compares the sorption properties of magnetic chitosan (MC, prepared by dispersion of hydrothermally precipitated magnetite microparticles (synthesized through Fe(II)/Fe(III) precursors) into chitosan solution and crosslinking with glutaraldehyde) with those of the urea derivative (MC-UR) and its sulfonated derivative (MC-UR/S) for cerium (as an example of REEs). The sorbents were characterized by FTIR, TGA, elemental analysis, SEM-EDX, TEM, VSM, and titration. In a second step, the effect of pH (optimum at pH 5), the uptake kinetics (fitted by the pseudo-first-order rate equation), the sorption isotherms (modeled by the Langmuir equation) are investigated. The successive modifications of magnetic chitosan increases the maximum sorption capacity from 0.28 to 0.845 and 1.25 mmol Ce g−1 (MC, MC-UR, and MC-UR/S, respectively). The bi-functionalization strongly increases the selectivity of the sorbent for Ce(III) through multi-component equimolar solutions (especially at pH 4). The functionalization notably increases the stability at recycling (for at least 5 cycles), using 0.2 M HCl for the complete desorption of cerium from the loaded sorbent. The bi-functionalized sorbent was successfully tested for the recovery of cerium from pre-treated acidic leachates, recovered from low-grade cerium-bearing Egyptian ore.

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Leaching Behaviour and Kinetic of Light and Heavy Rare Earth Elements (REE) from Zircon Tailings in Indonesia

Cited by 18 publications

References 43 publications

Acid Leaching of La and Ce from Ferrocarbonatite-Related REE Ores

Acid Leaching of La and Ce from Ferrocarbonatite-Related REE Ores

Leaching of rare earth elements from coal ash using low molecular weight organocarboxylic acids: Complexation overview and kinetic evaluation

Enhancement of Cerium Sorption onto Urea-Functionalized Magnetite Chitosan Microparticles by Sorbent Sulfonation—Application to Ore Leachate

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