High‐efficiency recovery of rare earth ions by hydrolyzed poly(styrene‐<i>co</i>‐maleic anhydride)

Gui, Wenjun; Yang, Ying; Zhu, Xuan

doi:10.1002/app.43676

Cited by 7 publications

(3 citation statements)

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“…Yang's group has done pioneering work in PILs as solid phase extraction agents to enrich metal ions from aqueous solution. [145][146][147] As presented in Fig. 32a, imidazolium-based task-specific polymeric ionic liquid (CP-AMIN) is reported to exhibit excellent performance in the recovery of platinum group metal ions from aqueous solution.…”

Section: Applicationmentioning

confidence: 99%

Poly(ionic liquid)s: an emerging platform for green chemistry

Zhu,

Yang

2024

Green Chem.

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Section: Applicationmentioning

confidence: 99%

Poly(ionic liquid)s: an emerging platform for green chemistry

Zhu,

Yang

2024

Green Chem.

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“…Recently, our group had synthesized a series of PILs as solid-phase microextraction agents to enrich metal ions from the aqueous solution ,− which show high adsorption capacities, desirable selectivity, and excellent recyclability. The enrichment mechanism has been confirmed as a synergistic effect of electrostatic attractions and multiple supramolecular interactions .…”

Section: Introductionmentioning

confidence: 99%

Extraction of Pt(IV), Pt(II), and Pd(II) from Acidic Chloride Media Using Imidazolium-Based Task-Specific Polymeric Ionic Liquid

Zhao

Wang

et al. 2019

Ind. Eng. Chem. Res.

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As an excellent separation material to recover platinum group metals (PGMs), imidazolium-based taskspecific polymeric ionic liquid (CP-AMIN) was successfully synthesized and characterized by SEM and FT-IR. The effects of temperature, pH, reaction time, CP-AMIN amount, and concentration of chloride ion were discussed during the process of extraction of Pt(IV), Pt(II), and Pd(II) from acidic chloride media. It shows high extraction efficiency under various conditions, suggesting CP-AMIN has strong adaptability of environment. CP-AMIN also presents excellent selectivity for PGMs in the solutions with coexisting metal ions (Ni 2+ , Mn 2+ , Cu 2+ , Cd 2+ , Co 2+ , and Cr 3+ ), and it indicates the CP-AMIN process efficient task specificity. Notably, the acidic thiourea can desorb PGMs from CP-AMIN almost completely. After seven cycles of adsorption−desorption experiments, the extraction efficiencies still maintain above 85%. This suggests that CP-AMIN also exhibits excellent recyclability. Meanwhile, due to its being easy to handle, safe, and environmentally friendly, the task-specific polymeric ionic liquid promises great potential to recover PGMs from aqueous phase.

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“…The following supporting information can be downloaded at: , References [ 23 , 27 , 29 , 33 , 34 , 47 , 48 , 51 , 52 , 68 , 74 , 75 , 76 , 77 , 78 , 79 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 ...…”

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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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High‐efficiency recovery of rare earth ions by hydrolyzed poly(styrene‐co‐maleic anhydride)

Abstract: Hydrolyzed poly(styrene-co-maleic anhydride) (PSMA) as a high-efficiency adsorbent is used for recovering ) was proved to be insignificant. Moreover, the spent adsorbent could be well regenerated and kept above 80% of adsorption efficiency at the end of the fifth cycle.

Cited by 7 publications

References 37 publications

Poly(ionic liquid)s: an emerging platform for green chemistry

Poly(ionic liquid)s: an emerging platform for green chemistry

Extraction of Pt(IV), Pt(II), and Pd(II) from Acidic Chloride Media Using Imidazolium-Based Task-Specific Polymeric Ionic Liquid

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

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