Liquid-liquid extraction of lithium from aqueous solution using novel ionic liquid extractants via COSMO-RS and experiments

Zhao, Xu; Wu, Hai Hong; Duan, Mengshan; Hao, Xiaocui; Yang, Qiwei; Zhang, Qi; Huang, Xiping

doi:10.1016/j.fluid.2017.11.038

Cited by 42 publications

(31 citation statements)

References 32 publications

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“…As there are 10 18 ILs are currently available, it is very essential to design a suitable IL for the removal of pollutants from their resources. But the experimental realization of optimizing ILs would be vast time consuming and cost intensive . Therefore, an initial prescreening of ILs is necessary for an efficient separation process…”

Section: Introductionmentioning

confidence: 99%

“…COSMO‐RS or “The conductor‐like screening model for realistic solvents” is a novel and efficient method, which combines quantum chemical considerations and statistical thermodynamics that allows the priori prediction of the thermodynamic properties of ILs systems using only element‐specific parameters . Aside from its predictivity, which is based solely on information concerning the molecular structure, the main advantage of COSMO‐RS is its working speed.…”

Section: Introductionmentioning

confidence: 99%

“…Extraction of heavy metals such as Cu 2+ , Hg 2+ , Na 2+ , K + , Mg 2+ , Co 2+ , Fe 3+ , Ni 2+ , Ti + , sulfate was investigated by Fatima et al [16] Yuanyuan Gao reported that the removal of fungicides like thiram, metalaxyl, diethofencob, myclobutanil, tebulonazole using 1-octyl-3-methylimidazolium hexafluorophosphate [OMIM] [PF 6 ]. [17] As there are 10 18 ILs are currently available, it is very essential to design a suitable IL for the removal of pollutants from their resources. But the experimental realization of optimizing ILs would be vast time consuming and cost intensive.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Chemical Reactivity and Stability of Ionic Liquids Using Ab Initio and COSMO‐RS model

Rajadurai

Ramalingam²,

Lakshmi

2020

J Comput Chem

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In this study, the quantum chemical descriptors such as highest occupied molecular orbital (HOMO) energy, lowest unoccupied molecular orbital (LUMO) energy, HOMO‐LUMO energy gap, electrophilicity index, electronegativity, global hardness and global softness of five cations like 1‐butyl‐3‐methylimidazolium [BMIM]+, 1‐pentyl‐3‐methylimidazolium [PMIM]+, 1‐hexyl‐3‐methylimidazolium [HMIM]+, 1‐heptyl‐3‐methylimidazolium [HEPMIM]+ and 1‐octyl‐3‐methylimidazolium [OMIM]+ and five anions including butyl sulfate [BUSO4]−, pentyl sulfate [PENSO4]−, hexyl sulfate [HEXSO4]−, heptyl sulfate [HEPSO4]−, and octyl sulfate [OCTSO4]− and their combination of 25 ionic liquids (ILs) were predicted using ab initio method. To validate the findings, the sigma profiles and sigma potentials were generated for all the studied ILs. From this study, it was observed that imidazolium‐based ILs with smaller anion size is the most favorable IL for the removal of pollutants from their resources and/or effluents. © 2020 Wiley Periodicals, Inc.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of Chemical Reactivity and Stability of Ionic Liquids Using Ab Initio and COSMO‐RS model

Rajadurai

Ramalingam²,

Lakshmi

2020

J Comput Chem

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“…The application of polymer‐polymer and polymer‐salt ATPS has been restricted as their shortcomings such as high viscosity, difficulty in phase separation, and easily emulsify. IL is expensive and just mainly used on the separation and purification of imidazoles and pyridine antibiotics . At present, the small molecule alcohol‐salt ATPS has been applied in different domains of chemistry because of its advantages of low cost, low viscosity, simple operation, and good biocompatibility.…”

Section: Introductionmentioning

confidence: 99%

“…IL is expensive and just mainly used on the separation and purification of imidazoles and pyridine antibiotics. 26,27 At present, the small molecule alcohol-salt ATPS has been applied in different domains of chemistry because of its advantages of low cost, low viscosity, simple operation, and good biocompatibility. But unitary ATPS composed of one small molecular water-miscible organic solvent and salt cannot effectively adjust the polarity of the aqueous two-phase, and the object solute cannot quickly enter the organic phase.…”

Section: Introductionmentioning

confidence: 99%

Separation and determination of tetracycline hydrochloride in real water samples using binary small molecule alcohol‐salt aqueous two‐phase system coupled with high‐performance liquid chromatography

Donggang

Wang

et al. 2019

Chirality

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An environmental and sensitive sample pretreatment method was established and combined with high‐performance liquid chromatography (HPLC) for the analysis of tetracycline hydrochloride (TC) in feed water and lake water. One element small molecule alcohol‐salt aqueous two‐phase system (ATPS) cannot effectively adjust the polarity of the system, but binary small molecule alcohol‐salt ATPS can adjust the polarity and improve the extraction efficiency of antibiotics. In this work, a binary ATPS based on ethanol +2‐propanol + (NH4)2SO4 system was formed and applied to the separation and purification of TC in real water samples. The influence factors on partition behaviors of TC were discussed, including the types and the concentration of phase salts, the volume ratio of alcohol, the pH value, extraction temperature, and the standing time. The response surface methodology was used to determine the best experimental conditions for multi‐factor experiments. Under this optimal condition, the extraction efficiency of TC reached 95.7%. This new method is considered to have significant application in the divorce of antibiotics.

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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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Liquid-liquid extraction of lithium from aqueous solution using novel ionic liquid extractants via COSMO-RS and experiments

Cited by 42 publications

References 32 publications

Evaluation of Chemical Reactivity and Stability of Ionic Liquids Using Ab Initio and COSMO‐RS model

Evaluation of Chemical Reactivity and Stability of Ionic Liquids Using Ab Initio and COSMO‐RS model

Separation and determination of tetracycline hydrochloride in real water samples using binary small molecule alcohol‐salt aqueous two‐phase system coupled with high‐performance liquid chromatography

Ionic liquids to remove toxic metal pollution

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