Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid

Janković, Bojan; Manić, Nebojša; Buchner, Richard; Płowaś-Korus, Iwona; Pereiro, Ana B.; González, Eliseo Amado

doi:10.1016/j.tca.2018.12.013

Cited by 8 publications

(3 citation statements)

References 43 publications

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“…Although PILs have a wide potential for industrial uses, their future applications will depend on the understanding of the relation between the molecular-level structure, cooperative dynamics, and macroscopic properties. 48 There are two overlapping topics (ionic liquids and distillation processes), so before the discussion, the authors refer to some theoretical issues.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Methylpyrrolidonium Trifluoroacetate Protic Ionic Liquid: Distillation Boundary in the Ethyl Trifluoroacetate–Trifluoroacetic Acid–N-Methyl-2-pyrrolidone System

Polkovnichenko,

Lupachev,

Kulov

et al. 2023

J. Chem. Eng. Data

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Experimental data on the distillation boundary in the ethyl trifluoroacetate (EtTFA)–trifluoroacetic acid (TFA)–N-methyl-2-pyrrolidone (NMP) azeotropic (Az) system are considered. Theoretical qualitative model of the distillation map of the EtTFA–TFA–NMP mixture at atmospheric pressure supposes two distillation areas with TFA or EtTFA having lower volatility and vice versa, and they are split by the separatrix AzEtTFA/TFA–protic ionic liquid (PIL). From the experimental data, for the liquid phase that is located closer to the center of the concentration simplex, the third component traces occurred, but in general, the vapor-phase composition (vapor line) in the distillation map belongs to binary constituents. One more interesting aspect is the vapor composition line across the binary azeotrope EtTFA–TFA and, as a consequence, the separatrix AzEtTFA/TFA–PIL. Therefore, the separation during Rayleigh distillation and thermodynamic constraint (caused by the presence of the azeotrope and the separatrix generated by it) overcoming become possible by reason of PIL formation.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Methylpyrrolidonium Trifluoroacetate Protic Ionic Liquid: Distillation Boundary in the Ethyl Trifluoroacetate–Trifluoroacetic Acid–N-Methyl-2-pyrrolidone System

Polkovnichenko,

Lupachev,

Kulov

et al. 2023

J. Chem. Eng. Data

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“…The chemicals and reagents used in this work are shown in Table S1 of Supporting Information (SI) together with the corresponding suppliers and purities. The PILs used in this work were synthesized by a Brønsted-Lowry titration between ethanolamine and the corresponding organic acid (see Table S1 of SI) and were purified as described in literature [8,38]. PILs were dried under vacuum (4 Pa) for at least 48 h with continuous stirring.…”

Section: Methodsmentioning

confidence: 99%

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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“…In order to improve these issues, several alternatives have been investigated: the use of microwaves or ultrasounds as alternatives for reflux heating, which allows the significant reduction of both reaction time and the use of organic solvents [13,27]. One other possibility analyzed was the use of renewable sources [28,29] for ionic liquid production: amino acids [30][31][32][33][34][35][36], polysaccharides (cellulose, chitin, and starch, but also fructose, glucose, galactose and arabinose obtained from polysaccharides) [37][38][39][40][41][42][43][44], fatty acids [45][46][47][48][49], organic acids [9,[50][51][52]. The synthesis of this type of bio-ionic liquids, involves less steps but requires the use of large amounts of toxic solvents and the yield varies between 35 and 85%, so further studies are still required [14].…”

Section: Ionic Liquidmentioning

confidence: 99%

Applications of Ionic Liquids in Carboxylic Acids Separation

2022

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Ionic liquids (ILs) are considered a green viable organic solvent substitute for use in the extraction and purification of biosynthetic products (derived from biomass—solid/liquid extraction, or obtained through fermentation—liquid/liquid extraction). In this review, we analyzed the ionic liquids (greener alternative for volatile organic media in chemical separation processes) as solvents for extraction (physical and reactive) and pertraction (extraction and transport through liquid membranes) in the downstream part of organic acids production, focusing on current advances and future trends of ILs in the fields of promoting environmentally friendly products separation.

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Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid

Cited by 8 publications

References 43 publications

Methylpyrrolidonium Trifluoroacetate Protic Ionic Liquid: Distillation Boundary in the Ethyl Trifluoroacetate–Trifluoroacetic Acid–N-Methyl-2-pyrrolidone System

Methylpyrrolidonium Trifluoroacetate Protic Ionic Liquid: Distillation Boundary in the Ethyl Trifluoroacetate–Trifluoroacetic Acid–N-Methyl-2-pyrrolidone System

Separation of azeotropic mixtures using protic ionic liquids as extraction solvents

Applications of Ionic Liquids in Carboxylic Acids Separation

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