Selective separation of Yttrium and Uranium from Xenotime Concentrate

Ibrahium, Hala A.; Gado, Mohamed A.; Awwad, Nasser S.; Fathy, Wael

doi:10.1002/zaac.202100118

Cited by 12 publications

(8 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To investigate the thermodynamic performance of the Co +2 ion sorption reaction system on the TZAB, enthalpy (ΔH), Gibbs free energy (ΔG), and entropy (ΔS) were calculated. These thermodynamic parameters were calculated by using Equations (14) and (15) [ 53 , 54 , 55 ]:

∆G° = ∆H° − T∆S° where K is the reaction constant, T (°K) is the absolute temperature, and R is the universal constant of gas (8.314 J/mol·K).…”

Section: Resultsmentioning

confidence: 99%

Eco-Friendly Recycling of Lithium Batteries for Extraction of High-Purity Metals

et al. 2023

Self Cite

View full text Add to dashboard Cite

The significant increase in lithium batteries consumption produces a significant quantity of discarded lithium-ion batteries (LIBs). On the one hand, the shortage of high-grade ores leads to the necessity of processing low-grade ores, which contain a low percentage of valuable metals in comparison to the discarded LIBs that contain a high percentage of these metals, which enhances the processing of the discarded LIBs. On the other hand, the processing of discarded LIBs reduces the negative environmental effects that result from their storage and the harmful elements contained in their composition. Hence, the current study aims at developing cost-effective and ecofriendly technology for cobalt and lithium metal ion recovery based on discarded LIBs. A novel synthesized solid-phase adsorbent (TZAB) was utilized for the selective removal of cobalt from synthetic solutions and spent LIBs. The synthesized TZAB adsorbent was characterized by using 13C-NMR, GC-MS, FT-IR, 1H-NMR, and TGA. The factors affecting the adsorption of cobalt and lithium ions from synthetic solutions and spent LIBs, including the sorbent dose, pH, contact time, temperature, and cobalt concentration were investigated. The conditions surrounding the recovery of cobalt and lithium from processing discarded LIBs, were investigated to optimize the maximum recovery. The Langmuir, Freundlich, and Dubinin–Radushkevich (D-R) isotherm models were used to study the kinetics of the adsorption process. The obtained results showed that high-purity CoC2O4 and Li3PO4 were obtained with a purity of 95% and 98.3% and a percent recovery of 93.48% and 95.76%, respectively. The maximum recovery of Co(II) from synthetic solutions was obtained at C0 = 500 mg·L−1, dose of 0.08 g, pH 7.5, T = 25 °C, and reaction time = 90 min. The collected data from Langmuir’s isotherm and the adsorption processes of Co agree with the data predicted by the D-R isotherm models, which shows that the adsorption of Co(II) onto the TZAB seems to be chemisorption, and the results agree with the Langmuir and D-R isotherm models.

show abstract

∆G° = ∆H° − T∆S° where K is the reaction constant, T (°K) is the absolute temperature, and R is the universal constant of gas (8.314 J/mol·K).…”

Section: Resultsmentioning

confidence: 99%

Eco-Friendly Recycling of Lithium Batteries for Extraction of High-Purity Metals

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…It is now apparent that the 1st-order modelling and the empirical data are not alike, and therefore the modelling is not suitable for the system under investigation. Conversely, the pseudo-2nd-order modelling is symbolized by the subsequent Equation (2) [ 35 , 36 , 37 , 38 ]:

…”

Section: Resultsmentioning

confidence: 99%

Selective Recovery of Cadmium, Cobalt, and Nickel from Spent Ni–Cd Batteries Using Adogen® 464 and Mesoporous Silica Derivatives

Weshahy

Sakr

Gouda

et al. 2022

IJMS

Self Cite

View full text Add to dashboard Cite

Spent Ni–Cd batteries are now considered an important source for many valuable metals. The recovery of cadmium, cobalt, and nickel from spent Ni–Cd Batteries has been performed in this study. The optimum leaching process was achieved using 20% H2SO4, solid/liquid (S/L) 1/5 at 80 °C for 6 h. The leaching efficiency of Fe, Cd, and Co was nearly 100%, whereas the leaching efficiency of Ni was 95%. The recovery of the concerned elements was attained using successive different separation techniques. Cd(II) ions were extracted by a solvent, namely, Adogen® 464, and precipitated as CdS with 0.5% Na2S solution at pH of 1.25 and room temperature. The extraction process corresponded to pseudo-2nd-order. The prepared PTU-MS silica was applied for adsorption of Co(II) ions from aqueous solution, while the desorption process was performed using 0.3 M H2SO4. Cobalt was precipitated at pH 9.0 as Co(OH)2 using NH4OH. The kinetic and thermodynamic parameters were also investigated. Nickel was directly precipitated at pH 8.25 using a 10% NaOH solution at ambient temperature. FTIR, SEM, and EDX confirm the structure of the products.

show abstract

“…In the case of CTPO, the appearance of a new peak at 6.8° and inhibited in the strength of the second peak, as shown in Figure 3, suggests that the polymeric structure has been changed, likely because of the addition of functional groups in the polymer backbone, which facilitate the destruction of hydrogen bonds in the original main chains. In order to preserve stability, the crystallinity of chitosan mirrored the polymer's intramolecular and intermolecular hydrogen bonds [52–54] . Orientation shifts in the initial polymeric chains because of the predicted hydrogen bond disruption are reflected in the crystallinity actions after introducing moiety chains with new functional groups.…”

Section: Resultsmentioning

confidence: 99%

“…In order to preserve stability, the crystallinity of chitosan mirrored the polymer's intramolecular and intermolecular hydrogen bonds. [52][53][54] Orientation shifts in the initial polymeric chains because of the predicted hydrogen bond disruption are reflected in the crystallinity actions after introducing moiety chains with new functional groups. Journal of Inorganic and General Chemistry…”

Section: X-ray Diffraction Of Native Chitosan and Modified Chitosanmentioning

confidence: 99%

Separation of Cadmium Using a new Adsorbent of Modified Chitosan with Pyridine Dicarboxyamide derivative and application in different samples

Garoub

Gado

2021

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

Pyridine di‐carboxyamide derivative coupled chitosan (CTPO) is a new adsorbent prepared by coupling N2,N6‐dicarbamothioylpyridine‐2,6‐dicarboxamide with chitosan, which offers an excellent synergistic effect for the extraction of cadmium ions. FT‐IR, X‐ray diffraction, and thermal analysis techniques were used to characterize the modified new chitosan adsorbent. The Langmuir isotherm model accurately represents the adsorption effect with a maximum adsorption capacity of 307 mg/g. It was noted that the adsorption or up‐taking process of cadmium ions corresponded more closely to the pseudo‐second order instead of pseudo‐first order kinetic. The thermodynamic tools ΔS, ΔH and ΔG were also evaluated indicating endothermic and spontaneous adsorption process with a randomness increasing. The prepared new adsorbent is successfully used to extract cadmium ions from the actual leach liquor of Wadi Um‐Gheig ore sample.

show abstract

Selective separation of Yttrium and Uranium from Xenotime Concentrate

Cited by 12 publications

References 22 publications

Eco-Friendly Recycling of Lithium Batteries for Extraction of High-Purity Metals

Eco-Friendly Recycling of Lithium Batteries for Extraction of High-Purity Metals

Selective Recovery of Cadmium, Cobalt, and Nickel from Spent Ni–Cd Batteries Using Adogen® 464 and Mesoporous Silica Derivatives

Separation of Cadmium Using a new Adsorbent of Modified Chitosan with Pyridine Dicarboxyamide derivative and application in different samples

Contact Info

Product

Resources

About