Choline chloride based deep eutectic solvents selection and liquid-liquid equilibrium for separation of dimethyl carbonate and ethanol

Liu, Xiaowei; Xu, Donghai; Diao, Baotao; Zhang, Lianzheng; Gao, Jun; Liu, Di; Wang, Yinglong

doi:10.1016/j.molliq.2018.11.047

Cited by 59 publications

(27 citation statements)

References 41 publications

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“…Ionic liquids (ILs) have recently attracted an increasing attention because of fascinating physicochemical properties, such as good solubility, nonvolatility, and outstanding thermal stability [28,29] . Moreover, it is reported recently that ILs can destory the widespread hydrogen‐bonded networks of polymers, [30,31] which can offer an opportunity for PVA in plasticization.…”

Section: Introductionmentioning

confidence: 99%

Plasticizing Effect of Ionic Liquid on Poly (vinyl alcohol) with Different Degrees of Polymerization

et al. 2022

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The plasticized poly(vinyl alcohol) (TPVA) was successfully prepared using poly(vinyl alcohol) (PVA) and 1‐butyl‐3‐methylimidazolium bromide (BMIMBr). Plasticizing effect of the degree of polymerization (DP) on PVA was investigated by differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT‐IR), X‐ray diffraction (XRD), and melt flow indexer (MI). It was found that new hydrogen bonds between PVA and BMIMBr were formed, which was confirmed by the‐OH shift of PVA in FT‐IR analysis. XRD analysis showed that the original lattice and more irregular molecular chain structures in the amorphous region of PVA were destroyed effectively, which was conducive to the decrease of degree of crystallinity. Moreover, the plasticizing effect decreased with the increase of DP duo to more molecular entanglements in PVA. TPVA‐1799 possessed the largest thermal processing window and best melt flowability, which was significant for melt spinning in the future.

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Section: Introductionmentioning

confidence: 99%

Plasticizing Effect of Ionic Liquid on Poly (vinyl alcohol) with Different Degrees of Polymerization

et al. 2022

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“…In the meantime, the hydrogen bond lengths, total electron density, interaction energies and deformation electron density were calculated to analyze the interactions between ILs and (TFP / water). Furthermore, the NRTL [27][28][29] thermodynamic model was adopted to correlate the LLE experimental data. was fixed with the mass of TFP decreased and that of water increased.…”

Section: Introductionmentioning

confidence: 99%

Liquid-liquid phase equilibrium and interaction exploration for separation of azeotrope (2,2,3,3-tetrafluoro-1-propanol + water) with two imidazolium-based ionic liquids

Zhang

Wang

et al. 2020

Journal of Molecular Liquids

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“…32 The calculation details can be found in the literature. 33,34 The molecular geometry was optimized using the function (VMN-BP) and the basis set (DNP v4.0). To obtain the precise interaction energy of the AB complex, the basis set superposition error E(BSSE) was adopted to balance the overlap of basic functions.…”

Section: Intermolecular Interaction Calculationmentioning

confidence: 99%

Extraction performance evaluation and theoretical analysis of removal of phenol from oil mixture using a dual‐functionalized ionic liquid: 1‐hydroxyethyl‐3‐methylimidazolium propionate

Al-Haimi

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Phenol is an important chemical and has many applications in industry. It is mainly produced from coal tar. At present, the commonly used method in industry is caustic washing, which produces a lot of wastewater containing phenolic components, resulting in environmental contamination. Herein, a dual-functionalized ionic liquid, 1-hydroxyethyl-3-methylimidazolium propionate, was synthesized as a candidate for recovering phenol from a coal tar oil mixture. RESULTS:The performance of the ionic liquid was investigated by extraction experiments with various factors, including phase ratio, contact temperature and contact time. The optimal separation conditions for removing phenol using the ionic liquid were as follows: m DFIL :m oil = 1:5; contact temperature, 25°C; contact time, 30 min. The corresponding removal efficiency was 95.9%. The intermolecular interaction for separating phenol with the ionic liquid was verified to be hydrogen bond attraction using quantum chemical calculations and Fourier transform infrared spectrometry. CONCLUSIONS:The experimental and calculated results showed that 1-hydroxyethyl-3-methylimidazolium propionate was a suitable extractant for removal of phenol from the oil mixture. This provides a reference for the dephenolization process of coal tar in industry.

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Choline chloride based deep eutectic solvents selection and liquid-liquid equilibrium for separation of dimethyl carbonate and ethanol

Cited by 59 publications

References 41 publications

Plasticizing Effect of Ionic Liquid on Poly (vinyl alcohol) with Different Degrees of Polymerization

Plasticizing Effect of Ionic Liquid on Poly (vinyl alcohol) with Different Degrees of Polymerization

Liquid-liquid phase equilibrium and interaction exploration for separation of azeotrope (2,2,3,3-tetrafluoro-1-propanol + water) with two imidazolium-based ionic liquids

Extraction performance evaluation and theoretical analysis of removal of phenol from oil mixture using a dual‐functionalized ionic liquid: 1‐hydroxyethyl‐3‐methylimidazolium propionate

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