Solvent extraction of uranium and vanadium from carbonate leach solutions of ferruginous siltstone using cetylpyridinium carbonate in kerosene

Cheira, Mohamed F.

doi:10.1007/s11696-020-01073-w

Cited by 29 publications

(8 citation statements)

References 38 publications

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“…Hexavalent uranium [U(VI)], as clean nuclear energy, has been widely applied to mitigate the global energy shortage for sustainable development . However, the radionuclides produced in the process of nuclear energy consumption and radionuclide mining pose a serious threat to the biological environment. − The effective management of nuclide contamination and the development of nuclear resources are impending. Alternately, it remains an enormous challenge to effectively capture uranium from wastewater or seawater .…”

Section: Introductionmentioning

confidence: 99%

Interface-Constrained Layered Double Hydroxides for Stable Uranium Capture in Highly Acidic Industrial Wastewater

Yang

Liu

et al. 2021

ACS Appl. Mater. Interfaces

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Low acid endurance of layered double hydroxides (LDHs) limits their uranium(VI) [U(VI)] adsorption capability from harsh industrial wastewater. Here, we demonstrate magnesium–cobalt LDHs (Mg–Co LDHs) anchored in situ onto the pore channel of dendritic fibrous nanosilica (DFNS) via an interface-constrained strategy. The synergy of Mg–Co LDHs and DFNS not only improves the endurance of the Mg–Co LDH under harsh acidic conditions but also increases the number of active sites of DFNS. Thus, DFNS@Mg–Co LDH shows a high U(VI) uptake capacity (1143 mg g–1) at pH = 3 and C 0 = 598.7 mg L–1, which is about 4.8-fold higher than that of pristine DFNS. The DFNS@Mg–Co LDH exhibits excellent U(VI) uptake in various background water circumstances due to its acid endurance and highly selective adsorption. This interface-constrained strategy provides LDH materials with durability under extremely acidic conditions along with a high adsorption capacity, which is promising for uranium capture from various water fields.

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Section: Introductionmentioning

confidence: 99%

Interface-Constrained Layered Double Hydroxides for Stable Uranium Capture in Highly Acidic Industrial Wastewater

Yang

Liu

et al. 2021

ACS Appl. Mater. Interfaces

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“…The diffraction patterns were collected at 25°C and over an angular range of 3 to 70° with a step size of 0.05°/step and a 12 sec/increment dwell time. Major elements (Si, Al, and P) were analyzed using a UV/VIS spectrophotometer (UV-5200, USA) (Cheira, 2020a;Allam et al, 2022a). In contrast, Na and K ions were analyzed using a flame photometer.…”

Section: Mineralogical and Major Analysesmentioning

confidence: 99%

Physico-Chemical Estimation for Different Soils and Their Evaluation of the Available Copper, Zinc, and Manganese

Khamis

Dahdouh

Mohamed

2022

Zagazig Journal of Agricultural Research

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The soil is the multiple crucial components in satisfying all the essential necessities of mortal beings and is a significant segment of our agriculture. The study was executed with the principal pursuit of scrutinizing the soil samples for their physicochemical analysis and their total and available contents of Cu, Zn, and Mn. Mineralogical analyses of the three soil samples of Hihia, El-Noubaria, and El-Khattara regions were carried out using wet chemical analyses and X-ray diffraction measurements. Besides, the physicochemical analyses that are particle size distribution, cation exchange capacity (CEC), electrical conductance (EC), organic matter (OM), soil pH, CaCO 3 contents, soluble cations, and anions of the studied soil samples were applied. The results revealed that the textures of Hihia, El-Noubaria, and El-Khattara soils were clayey, sandy loam, and sandy, respectilvey. The conductivities were 2.10, 3.72, and 0.75 dSm -1 , while the CaCO 3 values were 58.00, 171.00, and 18.8 gkg -1 . Besides, the soil pH values of the clayey, sandy calcareous, and sandy soils are 8. 21, 8.11, and 8.34, respectively; hence the soils were alkaline. Moreover, the atomic absorption technique measured the total and available contents of Cu, Zn, and Mn of the three soils. Copper, zinc, and manganese were extracted from soils using diethylene triamine pentaacetic acid (DTPA). The data obtained were compared with the global permissible limits higher than the DTPA-extractable Cu, Zn, and Mn contents. Hence, the studied soils are safe and suitable for cultivating many crops and fruit trees.

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“…Adsorption has recently emerged as one of the cheapest selective strategies [13][14][15] for separating vanadium. Trials were reported to have been conducted in order to establish an efficient procedure for extracting vanadium from their ores [12][13][14][15][16][16][17][18][19][20]. In general, the development of "greener" and more environmentally friendly treatment technologies must be viewed as a critical component for enterprises dealing with toxic, hazardous, and chemically-laden wastewater [21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Potential Evaluation of Modified Cellulose Immobilized with Hydroxyquinoline as a Sorbent for Vanadium Ions

et al. 2022

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A considerable increase in the importance of vanadium globally and its common uses in many manufacturable alloys made it a target for much scientific research interested in extraction and recovery. A solid modified cellulose sorbent (GCIHQ) was prepared by simple grafting of cellulose, then immobilized with hydroxyquinoline, and examined as a sorbent for V(V) ions. FT-IR, TGA, BET, and SEM–EDX investigations were used to characterize the GCIHQ. A higher surface area for the synthesized GCIHQ resin has been recorded (65.8 m2/g) more than the used cellulose (21.7m2/g). Several vanadium sorption parameters using the modified GCIHQ from the sulfate medium were optimized namely contact time, pH, initial vanadium ions concentration, sorbent dose, and sorption temperature. The kinetics results revealed that the sorption of vanadium ions upon the synthesized sorbent followed the pseudo-second-order with R2 of > 0.99, which indicated that the sorption mechanism was chemical interaction. The sorption process was studied using Freundlich, Langmuir, Dubinin–Radushkevich, and Temkin isotherm models to describe the adsorbent-adsorbate interaction. The Langmuir model was the most fitting model with the experimental results; the experimental adsorption uptake of 113 mg/g was matched with that of the calculated results. The activation energy (Ea) for adsorption was 12.91 kJ.mol−1, indicating the process is to be chemisorption. Thermodynamic characteristics with ΔH of 13.46 kJ/mol and a ΔS 115.15 J/mol.K revealed the endothermic and spontaneous nature.

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Solvent extraction of uranium and vanadium from carbonate leach solutions of ferruginous siltstone using cetylpyridinium carbonate in kerosene

Cited by 29 publications

References 38 publications

Interface-Constrained Layered Double Hydroxides for Stable Uranium Capture in Highly Acidic Industrial Wastewater

Interface-Constrained Layered Double Hydroxides for Stable Uranium Capture in Highly Acidic Industrial Wastewater

Physico-Chemical Estimation for Different Soils and Their Evaluation of the Available Copper, Zinc, and Manganese

Synthesis, Characterization, and Potential Evaluation of Modified Cellulose Immobilized with Hydroxyquinoline as a Sorbent for Vanadium Ions

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