Choline chloride based deep eutectic solvents as extraction media for separation of n-hexane–ethanol mixture

Samarov, Artemiy; Смирнов, М. А.; Sokolova, Maria P.; Попова, Е. Н.; Тойкка, А. М.

doi:10.1016/j.fluid.2017.03.029

Cited by 46 publications

(30 citation statements)

References 18 publications

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“…The Table S7 of SI lists the properties of all streams in the extraction process used to separate ethanol from its azeotropic mixture. Moreover, a comparison between the data obtained for the PILs studied in this work with the other extraction solvents used in the literature [10][11][12][13][14][15][16][17][18][25][26][27][28][29][30][31][32][33][34][35][36][37] is included in Figs. 5 and 6.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…The high ionicity ionic liquids (HIILs) [10,27] and deep eutectic solvents (DESs) [18,36,37] are more efficient in the heptane purification. The effect of the ionic liquid's cation nature can be studied using the bis(trifluoromelthylsulfonyl)imide-based ionic liquids where the hexane purity in the raffinate stream can be ranked as:…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In order to perform the simulation studies and process design for the extraction processes, the LLE data must be fitted to a thermodynamic model. Following the methodology widely used for ILs [16,45], NRTL (Non Random Two Liquid) model was applied to these partially miscible systems. This model has already demonstrated its ability to satisfactory describe the LLE behaviour of systems involving ILs [16,45].…”

Section: Correlation Using Nrtl Modelmentioning

confidence: 99%

“…Following the methodology widely used for ILs [16,45], NRTL (Non Random Two Liquid) model was applied to these partially miscible systems. This model has already demonstrated its ability to satisfactory describe the LLE behaviour of systems involving ILs [16,45]. The third randomness parameter  was optimized and their values are reported in Table 3.…”

Section: Correlation Using Nrtl Modelmentioning

confidence: 99%

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Separation of azeotropic mixtures using protic ionic liquids as extraction solvents

Sosa

Araújo

González

et al. 2020

Journal of Molecular Liquids

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The aim of this work is to evaluate the separation of hydrocarbons (hexane and heptane) from their azeotropic mixtures with ethanol using protic ionic liquid (PIL) as extraction solvents. With this goal in mind, PILs were synthesized and their thermal and physical characterization were carried out. Experimental determination of the phase equilibrium for the ternary systems hydrocarbons + ethanol + PIL at 298.15 K and 101.2 kPa were also carried out in order to evaluate the feasibility of this application. The solute distribution ratio and the selectivity were also determined to compare the solvent capacity of these PILs. The NRTL equation was used to correlate the experimental data. Furthermore, this paper provides a comparison of the solvent capacity of these PILs with different extraction solvents (ionic liquids (ILs), ILs mixtures and deep eutectic solvents) available in the literature. Then, a critical review for the separation of these azeotropic mixtures was carried out using the extraction processes data obtained through the simulation using a conventional software.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Simulation Resultsmentioning

confidence: 99%

Section: Correlation Using Nrtl Modelmentioning

confidence: 99%

Section: Correlation Using Nrtl Modelmentioning

confidence: 99%

See 2 more Smart Citations

Separation of azeotropic mixtures using protic ionic liquids as extraction solvents

Sosa

Araújo

González

et al. 2020

Journal of Molecular Liquids

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“…The wide application of ILs is held back by their high cost, evidences for their toxicity and lack of biodegradability [23,24]. In this sense increased attention is drawn toward alternative liquids with similar physico-chemical properties, i.e., deep eutectic solvents (DES) [25][26][27], and especially their subclass: natural deep eutectic solvents (NADES) [28]. NADES are composed of two or more natural components, which interact via strong hydrogen bonding with formation of a liquid with the melting temperature much lower than those for individual components.…”

Section: Introductionmentioning

confidence: 99%

Ionic Conductivity and Structure of Chitosan Films Modified with Lactic Acid-Choline Chloride NADES

et al. 2020

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The natural deep eutectic solvent (NADES) based on choline chloride (ChCl) and lactic acid (LA) was used for the preparation of chitosan (CS) films by the solution casting method. The content of NADES in films was from 0 to 82 wt%. The impact of NADES on the morphology and crystalline structure of films was investigated using scanning electron microscopy as well as wide-angle and small-angle X-ray scattering. The experimental results allow to propose CS chains swelling in NADES. FTIR spectroscopy confirms the interactions between CS and NADES components via the formation of hydrogen and ion bonds. The thermal properties of the composite films were studied by simultaneous thermogravimetric and differential thermal analysis. Thermomechanical analysis demonstrated appearance of two transitions at temperatures between −23 and −5 °C and 54–102 °C depending on NADES content. It was found that electrical conductivity of film with 82 wt% of NADES reaches 1.7 mS/cm. The influence of the composition and structure of films on the charge carriers concentration and their mobility is discussed.

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Experimental and computational studies on isolation of cardanol from cashew nut shell liquid using diethanolamine‐based deep eutectic solvent at different molar ratios

Malaiyarasan,

Devakumar Vethakkan J,

Ramalingam

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDAmine‐based deep eutectic mixtures composed of choline chloride with DEA‐based hydrogen bond donor in various mole ratios like 1:2, 1:3, 1:4, 1:5, 1:6, and 1:7 for isolation of cardanol from cashew nut shell liquid.RESULTSIn this study, green techniques were created to extract cardanol from cashew nut shell liquid (CNSL) by utilizing a deep eutectic solvent based on diethanolamine with various mole ratios (hydrogen bond acceptor: hydrogen bond donor) in 1:2, 1:3,1:4,1:5, 1:6 and 1:7. To enhance cardanol's solubility in DES, promote phase separation, and increase cardanol yield, ethyl acetate (EA) and isobutyl methyl ketone (IBMK) could be utilized as co‐solvents. At temperatures ranging from 293 to 343.15 K and 1 atm, the density of various mole ratios of DES was determined. Additionally, the prepared DES pH behaviour as well as the relationship between pH and temperature. For all investigated DES temperature increases caused a decrease in pH value. By using thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC), the similar mole ratios of amine‐based DES were studied for their thermal stability in terms of decomposition temperature, mass loss, and melting temperature. The melting temperature and thermal stability were both increased in this case when the HBD increased. The thermal stability of DES, which mostly depends on intermolecular interactions, is greatly influenced by HBD. Finally, at T = 298.15 K and 1 atm, cardanol was extracted from 50 mL of CNSL using different volumes of various mole ratios of DES (100 mL, 75 mL, 50 mL, and 25 mL) together with 25 mL of IBMK and 25 mL of EA. By using FT‐IR and GC–MS spectra, the extracted cardanol was evaluated.CONCLUSIONIt was observed that the yield of cardanol from each prepared mole ratios ratio of 100 mL DES was 96.57%, 95.38%, and 92.87%, respectively. In this study, the sigma potential and sigma profile of chosen HBA and HBD were determined using the conductor‐like screening model for real solvents (COSMO‐RS), and analyze the interactions between the molecules during the extraction process. The findings demonstrated the viability of using the chosen DES as extracting solvents for the polyphenol extraction process.This article is protected by copyright. All rights reserved.

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Choline chloride based deep eutectic solvents as extraction media for separation of n-hexane–ethanol mixture

Cited by 46 publications

References 18 publications

Separation of azeotropic mixtures using protic ionic liquids as extraction solvents

Separation of azeotropic mixtures using protic ionic liquids as extraction solvents

Ionic Conductivity and Structure of Chitosan Films Modified with Lactic Acid-Choline Chloride NADES

Experimental and computational studies on isolation of cardanol from cashew nut shell liquid using diethanolamine‐based deep eutectic solvent at different molar ratios

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