Column Separation of Vanadium(V) from Complex Sulfuric Solution Using Trialkylamine-Impregnated Resins

Chen, Bin; Bao, Shenxu; Zhang, Yimin

doi:10.1007/s11837-019-03944-4

Cited by 12 publications

(3 citation statements)

References 27 publications

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“…However, some researchers have found that CDI can adsorb certain ions by using new types of synthetic materials or surface‐modified materials as electrodes . A nitrate‐selective composite carbon electrode was used to remove nitrate ions from a solution containing a mixture of anions in CDI, and the adsorbed amount of nitrate ions was 19 mmol m −2 , 2.3 times greater than the adsorption capacity of a membrane capacitive deionization (MCDI) system .…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Vanadium Adsorption Performance of Resin/Carbon Composite Electrodes in Capacitive Deionization

2020

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Activated carbon (AC) and carbon nanotubes (CNTs) were used to fabricate resin/carbon composite electrodes (D314/AC and D314/CNTs). The adsorption characteristics of vanadium (V) on the two electrodes under different pH and voltage conditions were compared in capacitive deionization. Physical and electrochemical studies on the electrodes indicated that micropores and mesopores are well balanced in D314/AC, but mesopores are dominant in D314/CNTs. D314/ CNTs showed higher specific capacitance and higher ion adsorption capacity than D314/AC. This study indicated that the adsorption performance of composite electrodes for V is affected by the electrode material, especially the pore properties.

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Section: Introductionmentioning

confidence: 99%

Characteristics and Vanadium Adsorption Performance of Resin/Carbon Composite Electrodes in Capacitive Deionization

2020

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“…Therefore, they are the common ions of malachite, which can affect the solubility of malachite and thus the flotation performance (Du et al, 1997;Feng et al, 2017). The sulfidization and adsorption performances are influenced by the dissolution of the malachite surface and various components in the slurry solution, and the pH of the solution directly determines the distribution of the concentration of these components (Chen et al, 2020). The malachite surface is hydrolyzed by the polar water molecules on an aqueous solution.…”

Section: Effect Of Ph On the Composition Of The Malachite Solutionmentioning

confidence: 99%

Effect of sulfidization on the stability of adsorption of isoamyl xanthate on malachite

Wen¹,

Deng²

2020

Physicochem. Probl. Miner. Process.

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The activity and stability of adsorbed isoamyl xanthate (IX) on a malachite surface before and after sulfidization were studied by calculating the malachite dissolved component and adsorption energy and performing experiments the zeta potential measurements, adsorption and desorption, and flotation experiments. In the malachite slurry solution, the main components of copper are Cu 2+ , CuCO3, HCuO2-, CuO2-, and Cu(CO3)2 2-, and the concentration distribution of these components was related to the slurry pH value. Between pH 5 to 9, the main copper component in the slurry was CuCO3. The malachite surface was negatively charged; however, the sulfur ions or hydrosulfide ions could still adsorb on the surface at a pH of more than 8.2, which indicated that the sulfidization of malachite corresponds to the chemical adsorption, and the surface electrical properties of the malachite were not obvious to the sulfidization. The adsorption activity of malachite on IX was stronger than that of the sulfide malachite; however, the desorption ratio of IX concerning the malachite was higher than that of the sulfide malachite. The adsorption energy of IX on the malachite and sulfide malachite surface was-449.6 kJ/mol and-1134.7 kJ/mol, respectively, and the IX adsorbed on the sulfide malachite surface was more stable. The flotation experiments indicated that the sulfidization of malachite reduced the consumption of IX; however, the recovery of malachite was improved.

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“…Extractant-impregnated resins were also suggested for the separation of metal ions. Trialkylamine-impregnated resins can be used for the separation of vanadium(V) from complex sulfuric solution [11]. Di(2-ethylhexyl)phosphoric acid (D2EHPA) impregnated in macroporous resins can be employed to extract V(IV) from aqueous solutions [12,13].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Ga(III) by Di‐(2‐ethylhexyl)phosphoric acid (D2EHPA)‐Modified XAD‐4 Resins Prepared by Solvent‐Nonsolvent Modification

et al. 2021

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is one of the most important elements that are widely used in electronic devices. The development of Ga recovery technology is an important issue for resource recycling. In this study, di-(2-ethylhexyl)phosphoric acid (D2EHPA)modified XAD-4 resin (DMR) is prepared by the solvent-nonsolvent method. The evolution of pore characteristics demonstrates that the solvent-nonsolvent treatment is advantageous for the immobilization of D2EHPA in XAD-4 resin. The adsorption isotherm of Ga(III) can be described by the Langmuir isotherm model. The Ga(III) adsorption kinetics follows the pseudo-second-order model. The immobilized D2EHPA shows good stability. The reusability study indicates that DMR can maintain the performance after three cycles of adsorption and stripping. The results for the treatment of a practical leaching solution from GaN/Al 2 O 3 wafer further demonstrate that DMR can be applied effectively for Ga(III) recovery.

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Column Separation of Vanadium(V) from Complex Sulfuric Solution Using Trialkylamine-Impregnated Resins

Cited by 12 publications

References 27 publications

Characteristics and Vanadium Adsorption Performance of Resin/Carbon Composite Electrodes in Capacitive Deionization

Characteristics and Vanadium Adsorption Performance of Resin/Carbon Composite Electrodes in Capacitive Deionization

Effect of sulfidization on the stability of adsorption of isoamyl xanthate on malachite

Extraction of Ga(III) by Di‐(2‐ethylhexyl)phosphoric acid (D2EHPA)‐Modified XAD‐4 Resins Prepared by Solvent‐Nonsolvent Modification

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