Zinc(II) recovery using pyridine oxime-ether – Novel carrier in pseudo-emulsion hollow fiber strip dispersion system

Reis, M. Teresa A.; Ismael, M. Rosinda C.; Wojciechowska, Aleksandra; Wojciechowska, Irmina; Aksamitowski, Przemysław; Wieszczycka, Karolina; Carvalho, Jorge M.R.

doi:10.1016/j.seppur.2019.04.076

Cited by 16 publications

(5 citation statements)

References 44 publications

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“…Two gear pumps are used for pumping the two solutions to the membrane through variable flows. The experiment is carried out by passing the aqueous solution through the tube side and pseudo-emulsion through the shell side (outer side) of membranes in a counter-current manner (Carvalho 2019). Thereafter, the organic solution readily wets the hydrophobic micropores, so that the metal ions from the aqueous solutions migrate toward the extractant through it (Wieszczycka et al 2015).…”

Section: Membrane Processmentioning

confidence: 99%

Ionic liquids to remove toxic metal pollution

Rajadurai

Anguraj

2020

Environ Chem Lett

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Pollution by toxic, non-degradable metals is a rising health concern in the context of increasing industrialization and metal demand. Diseases may include brain damage, cardiovascular problems, gastrointestinal disorders and cancer, calling for advanced methods to clean soil, water, wastewater and air. Here, we review the use of ionic liquids, which are considered as eco-friendly solvents, to remove metals. Ionic liquids have unique properties such as no vapor emission, good solvation ability, higher thermal stability and tunability. Ionic liquids separate efficiently metal ions from aqueous solutions by electrostatic, Van der Waals and ion-pair interactions. Ionic liquids can be recovered by stripping, then reused several times for liquid-liquid extraction, adsorption and membrane separation. Ionic liquids improve membrane stability in membrane separation, and they act as surfactant for adsorption.

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Section: Membrane Processmentioning

confidence: 99%

Ionic liquids to remove toxic metal pollution

Rajadurai

Anguraj

2020

Environ Chem Lett

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“…In the presented research, the precursors of the pyridinium moieties that were introduced onto the polymer surface are N -decyloxy-1-(pyridnyl)ethanimines with high potential as metal extractants from neutral and acidic aqueous solutions (Fe(III) from HCl [ 15 ], Cu(II) and Cu(I) from chloride and sulfate solution [ 16 , 17 , 18 ], Pb(II) from acidic chloride–nitrate solution [ 19 , 20 ], and Zn(II) from HCl solution [ 21 ]). These compounds show exceptionally high metal ion removal efficiency in liquid–liquid and membrane systems [ 22 , 23 ]. For example, using the pseudo-emulsion-based hollow fiber strip dispersion technique (PEHFSD), N -decyloxy-1-(pyridin-3-yl)ethanimine showed much greater potential as the Pd(II) carrier than the commercial extractant (Alamine 308) [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Poly(vinylbenzyl Pyridinium Salts) as Novel Sorbents for Hazardous Metals Ions Removal

et al. 2022

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Novel efficient complexing resins—poly(vinylbenzyl pyridinium salts) fabricated through poly(vinylbenzyl halogene-co-divinylbenzene) quaternization of N-decyloxy-1-(pyridin-3-yl)ethaneimine and N-decyloxy-1-(pyridin-4-yl)ethaneimine—were tested as adsorbents of Pb(II), Cd(II), Cu(II), Zn(II), and Ni(II) from aqueous solutions. The structure of these materials was established by 13C CP-MAS NMR, X-ray photoelectron spectroscopy, elemental analysis, and Fourier transform infrared spectroscopy, as well as thermogravimetric and differential thermal analyses. The textural properties were determined using scanning electron microscopy and low-temperature N2 sorption. Based on the conducted sorption studies, it was shown that the uptake behavior of the metal ions towards novel resins depended on the type of functionalities, contact time, pH, metal concentrations, and the resin dosage. The Langmuir model was investigated to be the best one for fitting isothermal adsorption equilibrium data, and the corresponding adsorption capacities were predicted to be 296.4, 201.8, 83.8, 38.1, and 39.3 mg/g for Pb(II), Zn(II), Cd(II), Cu(II), and Ni(II), respectively. These results confirmed that owing to the presence of the functional pyridinium groups, the resins demonstrated proficient metal ion removal capacities. Furthermore, VBBr-D4EI could be successfully used for the selective uptake of Pb(II) from wastewater. It was also shown that the novel resins can be regenerated without significant loss of their sorption capacity.

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“…In Wieszczycka’s team, the search for advanced new extractants has resulted in the synthesis of pyridine derivatives containing an N -alkoxyimidamide or alkaneimine moieties (e.g., N -decoxy-1-(pyridin-3-yl)ethaneimine) [ 18 , 19 ], which have been reported to reach very fast equilibrium achieving in the extraction of Zn(II) or Fe(III) from chloride media. Good extraction properties of these derivatives for heavy metals made us investigate the use of quaternary salts of these derivatives, i.e., 3-[1-(2-ethylhexyloxyimine)methane]-1-propylpyridinium chloride, 3-[1-(decyloxyimine)methane ]-1-propylpyridinium chloride, 3-[1-(decyloxyimine)ethane]-1-propylpyridinium chloride and 4-[1-amine(2-ethylhexyloxyimine)]-1-propylpyridinium chloride towards Pd(II) and Pt(IV) recovery from chloride solutions.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Palladium(II) and Platinum(IV) in Novel Extraction Systems

Wiecka¹,

Rzelewska-Piekut²,

Wojciechowska³

et al. 2021

Materials

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Recovery of platinum group metals (PGM) from complex aqueous solutions generated as a result of leaching of various spent materials (e.g., spent automotive converters) is a vital issue in the context of the circular economy. In this study pyridinium derivatives containing an imidoamide or imine moiety (i.e., 3-[1-(2-ethylhexyloxyimine)methane]-1-propylpyridinium chloride, 3-[1-(decyloxyimine)methane]-1-propylpyridinium chloride, 3-[1-(decyloxyimine)ethane]-1-propylpyridinium chloride and 4-[1-amine(2-ethylhexyloxyimine)]-1-propylpyridinium chloride) are proposed as novel extractants for recovery of palladium(II) and platinum(IV) from model chloride aqueous solutions. The results of liquid-liquid extraction from one-component solutions of palladium(II) or platinum(IV) showed that quaternary pyridinium salts can be used as effective extractants for platinum metal ions. Moreover, PGM extraction from a two-component mixture proved no evident selectivity in the transfer of one of the metal ions to the organic phase. As the best extractant among the investigated ones, D3EI-PrCl (with straight alkyl chain at substituent) can be pointed out, however, problems with effective stripping or phase disengagement after stripping should be indicated as a drawback of the organic phases used. Further investigation should focus on the improvement of the organic phase properties (e.g., increase in hydrophobicity of the extractants and addition of an organic phase modifier) towards stripping efficiency.

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Zinc(II) recovery using pyridine oxime-ether – Novel carrier in pseudo-emulsion hollow fiber strip dispersion system

Cited by 16 publications

References 44 publications

Ionic liquids to remove toxic metal pollution

Ionic liquids to remove toxic metal pollution

Poly(vinylbenzyl Pyridinium Salts) as Novel Sorbents for Hazardous Metals Ions Removal

Recovery of Palladium(II) and Platinum(IV) in Novel Extraction Systems

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