Selective ion exchange recovery of rare earth elements from uranium mining solutions

Рычков, В. Н.; Kirillov, Evgeny; Kirillov, Sergey; Bunkov, Grigory; Mashkovtsev, Maxim A.; Botalov, Maxim; Семенищев, В. С.; Volkovich, Vladimir A.

doi:10.1063/1.4962601

Cited by 22 publications

(10 citation statements)

References 12 publications

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“…log q e = log K F + 1 n log C e (22) c) the Temkin isotherm model: q e = B ln A + B ln C e (23) where: K L is the Langmuir constant [dm 3 /mg], q m is the maximum adsorption capacity [mg/g], K F [mg/g] and 1/n are the Freundlich constants and 1/n indicates the adsorption favourability, B is the Temkin constant [J/mol] and can be written as B = RT/b T , where b T is the constant associated with the sorption heat [kJ/mol], and A is the Temkin constant corresponding to the maximum binding energy [dm 3 /g]. Additionally, two errors functions, i.e., the Chi-square (X 2 ) and root mean square error (RMSE) were used for isotherm models fitting:…”

Section: Isotherm Parametersmentioning

confidence: 99%

“…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. For example Xu et al [24] studied Co, Nd and Dy separations from the spent NdFeB permanent magnets using the am-ZrP/PAN composite ion exchanger.…”

Section: Introductionmentioning

confidence: 99%

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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: Isotherm Parametersmentioning

confidence: 99%

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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“…Magnetic-based microparticles obtained by incorporation of magnetite into a functionalized polymer may represent an improvement in separation while maintaining good sorption performance [32][33][34]. More conventional sorbents may include ion-exchange resins [35][36][37][38][39] and chelating resins [25,[40][41][42].…”

Section: Introductionmentioning

confidence: 99%

“…Resins bearing sulfonic-based groups have demonstrated a good affinity for REEs, being mono-functional resins such as Dowex 50 W X8 [36], Purolite C-100 [39] or multi-functional resins such as Diphonix resins (bearing sulfonic, diphosphonic and carboxylic groups) [43] or Purolite family [41].…”

Section: Introductionmentioning

confidence: 99%

Sulfonic-functionalized algal/PEI beads for scandium, cerium and holmium sorption from aqueous solutions (synthetic and industrial samples)

Hamza

Salih

Abdel‐Rahman

et al. 2021

Chemical Engineering Journal

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“…In Egypt, the main REE resource is monazite, which is extensively ascertained at the northern cost of the Mediterranean Sea but limited to the southern coast of the Red Sea [5]. Many chemical methods have been used to separate REEs from their ores or leach liquors, including precipitation [6], solvent extraction [7], ion-exchange [8], adsorption [9], liquid emulsion membrane [10,11], and ion inclusion membrane [12]. Generally, precipitation methods (through double-sulfate or HF or oxalic acid as a precipitate) are probably applied at REE concentrations of more than 10%, whereas solvent extraction methods are performed at concentrations of > 2000 mg L -1 .…”

Section: Introductionmentioning

confidence: 99%

Inclusion, Occlusion and adsorption of rare earth elements from chloride media onto Barite.Gypsum Co-precipitate

Abdo

Hagag

Ali

et al. 2022

Preprint

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The high demand for rare earth elements (REEs) was prompted scientists to look for a low-cost technique of REEs extracting from their ores. In this study, a synthetic (BaSO4.CaSO4) composite is prepared by co-precipitation of an equal concentration of barium and calcium chlorides for the recovery of REEs from acidic chloride leach liquor of monazite mineral. The prepared BaSO4.CaSO4 is characterized by FT-IR, XRD, DTA, SEM, particle size analysis, and pore size distribution. Adsorption experiments were carried out at pH = 4 and the sorption equilibrium were reached after 20 minutes. The sorption reaction followed a pseudo 2nd order mechanism. The sorption reaction was regulated with Langmuir adsorption isotherm. The monolayer adsorption capacity is 168.63 mg g-1 at 303 K. Thermodynamic studies showed that the sorption reaction is endothermic and spontaneous. The desorption of RE3 + is accomplished with 90.14% efficiency using 1 mol L-1 HNO3. BaSO4.CaSO4 could be reused after 5 adsorption-desorption cycles with 73% efficiency. The obtained results discuss the efficient use of 1:1 Barite. Gypsum composite as a natural mixture for REEs extraction. The adsorption capacity of Barite. Gypsum composite was 136 mg g-1.

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Selective ion exchange recovery of rare earth elements from uranium mining solutions

Cited by 22 publications

References 12 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

Sulfonic-functionalized algal/PEI beads for scandium, cerium and holmium sorption from aqueous solutions (synthetic and industrial samples)

Inclusion, Occlusion and adsorption of rare earth elements from chloride media onto Barite.Gypsum Co-precipitate

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