Ion Exchange Resin Technology in Recovery of Precious and Noble Metals

Mohebbi, Ali; Mahani, A. Abolghasemi; Izadi, Ahad

doi:10.1007/978-3-030-06085-5_9

Cited by 10 publications

(4 citation statements)

References 96 publications

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“…For hydrometallurgical technology, after raw wastes dissolution with suitable leaching solutions, metals of specific concern should be separated from other metals. To this end ion exchange, solvent extraction, combined ion exchange/solvent extraction or liquid membrane processes can be applied [14][15][16][17]. In recent years many commercially available ion exchangers such as Amberlyst 15 [18], Amberlite IRC-748 [19], DOWEX C-500 [20], Dowex 50 × 8 [21], Purolite C-100 [22], or KU-2-8 [23] were used for heavy metal ions and rare earths removal from various types of wastes.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Lanthanum(III) and Nickel(II) Ions from Acidic Solutions by the Highly Effective Ion Exchanger

2020

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The recovery of La(III) and Ni(II) ions by a macroporous cation exchanger in sodium form (Lewatit Monoplus SP112) has been studied in batch experiments under varying HNO3 concentrations (0.2–2.0 mol/dm3), La(III) and Ni(II) concentrations (25–200 mg/dm3), phase contact time (1–360 min), temperature (293–333 K), and resin mass (0.1–0.5 g). The experimental data revealed that the sorption process was dependent on all parameters used. The maximum sorption capacities were found at CHNO3 = 0.2 mol/dm3, m = 0.1 g, and T = 333 K. The kinetic data indicate that the sorption followed the pseudo-second order and film diffusion models. The sorption equilibrium time was reached at approximately 30 and 60 min for La(III) and Ni(II) ions, respectively. The equilibrium isotherm data were best fitted with the Langmuir model. The maximum monolayer capacities of Lewatit Monoplus SP112 were equal to 95.34 and 60.81 mg/g for La(III) and Ni(II) ions, respectively. The thermodynamic parameters showed that the sorption process was endothermic and spontaneous. Moreover, dynamic experiments were performed using the columns set. The resin regeneration was made using HCl and HNO3 solutions, and the desorption results exhibited effective regeneration. The ATR/FT-IR and XPS spectroscopy results indicated that the La(III) and Ni(II) ions were coordinated with the sulfonate groups.

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Section: Introductionmentioning

confidence: 99%

Recovery of Lanthanum(III) and Nickel(II) Ions from Acidic Solutions by the Highly Effective Ion Exchanger

2020

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“…The exchanged resin was washed with deionized water 3 to 4 times to remove excess free Ag + ions present at the surface of the resin beads. Resin beads were further filtered and air-dried at room temperature to obtain free-flowing resin beads ( Mohebbi et al., 2019 ; Ye et al., 2019 ).…”

Section: Methodsmentioning

confidence: 99%

Silver-doped active carbon spheres and their application for microbial decontamination of water

Joshi

Dutta

Gaur

et al. 2022

Heliyon

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“…The application of commercial ion exchange resins is hindered by challenges such as poor selectivity towards precious metals, complexity in elution, difficulties in regeneration processes, and high costs [ 5 ]. Therefore, there is a need for research to develop more cost-effective and efficient alternative adsorbents for separating and recovering target metal ions.…”

Section: Introductionmentioning

confidence: 99%

Crosslinked Polydiallyldimethylammonium Chloride Adsorbent for the Selective Separation of Rhenium Ions from Pregnant Leach Solutions

Fathi,

Mahmoudian,

Alorro

et al. 2024

Materials

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The depletion of valuable mineral reserves has rendered effluents generated from mining and industrial processing activities a promising resource for the production of precious elements. The synthesis and improvement of new adsorbents to extract valuable compounds from industrial wastes and pregnant leach solutions, besides increasing wealth, can play a significant role in reducing environmental concerns. In this work, a new and low-cost adsorbent for the selective extraction of rhenium (perrhenate ions, ReO4−) was synthesized by the free-radical polymerization (FRP) of a diallyl dimethylammonium chloride monomer (quaternary amine) in the presence of a crosslinker. Various methods were employed to characterize the polymeric adsorbent. The results revealed that the designed polymeric adsorbent had a high surface area and pores with nano-metric dimensions and a pore volume of 6.4 × 10−3 cm3/g. Four environments—single, binary, multicomponent, and real solutions—were applied to evaluate the adsorbent’s performance in the selective separation of Re. Additionally, these environments were used to understand the behavior of molybdenum ions, the primary competitors of perrhenate ions in the ion exchange process. In competitive conditions, using variations in qe,mix/qe, an antagonism phenomenon (qe,mix/qe < 1) occurred due to the inhibitory effect of surface-adsorbed molybdenum ions on the binding of the perrhenate ions. However, across all conditions, the separation values for Re were higher than those for the other studied elements (Mo, Cu, Fe).

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Ion Exchange Resin Technology in Recovery of Precious and Noble Metals

Cited by 10 publications

References 96 publications

Recovery of Lanthanum(III) and Nickel(II) Ions from Acidic Solutions by the Highly Effective Ion Exchanger

Recovery of Lanthanum(III) and Nickel(II) Ions from Acidic Solutions by the Highly Effective Ion Exchanger

Silver-doped active carbon spheres and their application for microbial decontamination of water

Crosslinked Polydiallyldimethylammonium Chloride Adsorbent for the Selective Separation of Rhenium Ions from Pregnant Leach Solutions

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