The Use of Ion Exchange in the Recovery of Vanadium from the Mass of a Spent Catalyst Used in the Oxidation of SO<sub>2</sub> to SO<sub>3</sub>

Drużyński, Sebastian; Mazurek, Krzysztof; Białowicz, Katarzyna

doi:10.2478/pjct-2014-0032

Cited by 6 publications

(3 citation statements)

References 11 publications

(4 reference statements)

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“…The study compared three cation exchangers namely; Dowex‐50 W‐X4‐100, Amberlite IR‐120, and Dowex‐50 W‐X4. In the setting of extremely acidic leach liquors, drawing attention to the notable differences in granularity and ion exchange capacity among the three resins [38].…”

Section: Introductionmentioning

confidence: 99%

Highly efficient recovery of vanadium from Abu Zeneima ferruginous siltstone, Southwestern Sinai, Egypt, by a novel polyimine‐based chelating ligand

Atia,

Radwan,

Kassab

et al. 2024

J Chinese Chemical Soc

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To extract V5+ ions from the ferruginous siltstone in the Abu Zeneima region of Southwestern Sinai, Egypt, a chelating polyimine ligand (PVAm‐Ben) was synthesized via a condensation reaction involving polyvinyl amine and α‐hydroxy ketone (Benzoin). The structure of PVAm‐Ben underwent comprehensive characterization employing various techniques, namely; FT‐IR, 1H‐NMR, 13C‐NMR, and GC/MS analyses. Experimental factors controlling such as pH, time, initial concentration, dosage, temperature, and stripping, were systematically optimized to enhance measurement accuracy. Under conditions of 25°C, 0.015 mol/L, and 30 minutes, PVAm‐Ben/C2H4Cl2 exhibited remarkable retention capacity at pH 3. Linear regression analysis results suggested the release of a mole of H+ during the extraction process. The stability constant (log β = 2.1882) of the PVAm‐Ben/V5+ complex was determined, yielding a value of 154.24. The stoichiometry mechanism between PVAm‐Ben and V5+ ions displayed a linear correlation (slope: 0.9922), signifying 1 mole of PVAm‐Ben reacting with 1 mole of vanadium. The pseudo‐second‐order kinetic model indicated an exothermic, spontaneous, and advantageous extraction process at low temperatures. Efficient stripping of PVAm‐Ben/C2H4Cl2 loaded with vanadium was achieved using 0.05 M NaOH with a 99% efficiency rate. Ultimately, enhanced variables were employed to yield a V2O5 concentrate with a vanadium content of 55% and a purity level of 98.21%.

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Section: Introductionmentioning

confidence: 99%

Highly efficient recovery of vanadium from Abu Zeneima ferruginous siltstone, Southwestern Sinai, Egypt, by a novel polyimine‐based chelating ligand

Atia,

Radwan,

Kassab

et al. 2024

J Chinese Chemical Soc

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“…The reaction of ion exchange is shown in Equations (3) and (4). The different techniques of adsorbing vanadium through resins are revealed in Table 2 [ 17 , 18 , 19 , 20 , 21 ].

where

and

are two different cations;

and

are two different anions; and Rc and Re are the cation and anion-exchange resin, respectively.…”

Section: Introductionmentioning

confidence: 99%

Recycling Vanadium and Proton-Exchange Membranes from Waste Vanadium Flow Batteries through Ion Exchange and Recast Methods

Chen

Lee

et al. 2022

Materials

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This study aims to provide a system to recycle vanadium resources and recover membranes from waste proton-exchange membranes. This research is divided into two parts. To begin, ion exchange batch and column experiments were applied to adsorb vanadium in a membrane. In this process, the waste membrane was initially dissolved in a 50% ethanol solution, and the suspension obtained by dispersing the membrane had 74 mg/L of vanadium. Then, Dowex G26 resin was used to adsorb vanadium from the membrane dispersion in the ion-exchange process. The adsorptive behavior and optimal parameters were explored in this study. The vanadium ions were then eluted by HCl to obtain an enrichment solution, and the V2O5 was received through precipitation and calcination methods. After obtaining the vanadium-free dispersion, the recycled membrane was prepared by recasting it in the second part. The characteristics of the recycled membrane, such as the moisture, FTIR spectra, ion-exchange capacity, and ion conductivity, are discussed. The results revealed that the adsorption capacity of vanadium through Dowex G26 was 81.86 mg/g. The eluting efficiency of HCl was 97.5%, and the optimal parameters of the precipitation and calcination processes were set as pH 5, NH4Cl:V = 2:1, and 350 °C. The moisture of the recycled membrane was 25.98%, and the IEC was 0.565 meq/g. The consequences of FTIR and ion conductivity demonstrated that the vanadium in the recycled membrane was eliminated by the ion-exchange method; however, the microstructure of the recycled membrane was influenced during ion exchange and recasting.

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“…The vanadium catalyst used in the oxidation of SO 2 to SO 3 loses its catalytic properties, due to a number of changes which take place in its texture and structure, and becomes dangerous industrial waste. This waste constitutes one of the basic problems of the sulphuric(VI) acid industry, which require a comprehensive solution [1][2][3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Method of Utilization of the Spent Vanadium Catalyst

Mazurek

Grzesiak

Drużyński

et al. 2018

Polish Journal of Chemical Technology

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A spent vanadium catalyst, from the plant of metallurgical type, was leached in a potassium hydroxide solution to recover vanadium. The effect of time, temperature, concentration of basic, catalyst particle size and phase ratio was studied. The results showed that for a 160-750 μm catalyst leached for 4 h at 313.15 K in the presence of 10% potassium hydroxide solution at a liquid: solid ratio of 20:1, the extent of leaching of V was about 87%. Additionally, separation of vanadium from such a solution was investigated by the ion exchange method. Two types of polymer strongly basic ion exchangers were used. The ion exchange tests indicate that vanadium were loaded from the post-leaching solution with high effi ciency. On this basis a fl owsheet for the proposed process of a complex utilization of the spent vanadium catalyst is presented.

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The Use of Ion Exchange in the Recovery of Vanadium from the Mass of a Spent Catalyst Used in the Oxidation of SO₂ to SO₃

Cited by 6 publications

References 11 publications

Highly efficient recovery of vanadium from Abu Zeneima ferruginous siltstone, Southwestern Sinai, Egypt, by a novel polyimine‐based chelating ligand

Highly efficient recovery of vanadium from Abu Zeneima ferruginous siltstone, Southwestern Sinai, Egypt, by a novel polyimine‐based chelating ligand

Recycling Vanadium and Proton-Exchange Membranes from Waste Vanadium Flow Batteries through Ion Exchange and Recast Methods

Method of Utilization of the Spent Vanadium Catalyst

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The Use of Ion Exchange in the Recovery of Vanadium from the Mass of a Spent Catalyst Used in the Oxidation of SO2 to SO3

Cited by 6 publications

References 11 publications

Highly efficient recovery of vanadium from Abu Zeneima ferruginous siltstone, Southwestern Sinai, Egypt, by a novel polyimine‐based chelating ligand

Highly efficient recovery of vanadium from Abu Zeneima ferruginous siltstone, Southwestern Sinai, Egypt, by a novel polyimine‐based chelating ligand

Recycling Vanadium and Proton-Exchange Membranes from Waste Vanadium Flow Batteries through Ion Exchange and Recast Methods

Method of Utilization of the Spent Vanadium Catalyst

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The Use of Ion Exchange in the Recovery of Vanadium from the Mass of a Spent Catalyst Used in the Oxidation of SO₂ to SO₃