Effect of ionic liquids, 1-butyl-3-methyl imidazolium bromide and 1-hexyl-3-methyl imidazolium bromide on the vapour – Liquid equilibria of the aqueous d -fructose solutions at 298.15 K and atmospheric pressure using isopiestic method

2017 ◽  
Vol 105 ◽  
pp. 142-150 ◽  
Author(s):  
Mohammed Taghi Zafarani-Moattar ◽  
Hemayat Shekaari ◽  
Elnaz Mazaher Haji Agha
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Isopiestic Method

Highly efficient CO2 fixation into cyclic carbonate by hydroxyl-functionalized protic ionic liquids at atmospheric pressure

2021 ◽  
Vol 511 ◽  
pp. 111756
Author(s):  
Cheng Li ◽  
Fei Liu ◽  
Tianxiang Zhao ◽  
Jiarui Gu ◽  
Peng Chen ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Co2 Fixation ◽  
Cyclic Carbonate ◽  
Protic Ionic Liquids ◽  
Highly Efficient

scholarly journals Tunning CO2 Separation Performance of Ionic Liquids through Asymmetric Anions

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 413
Author(s):  
Bruna F. Soares ◽  
Daniil R. Nosov ◽  
José M. Pires ◽  
Andrey A. Tyutyunov ◽  
Elena I. Lozinskaya ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Time Lag ◽  
Gas Permeation ◽  
Separation Performance ◽  
Experimental Conditions ◽  
Feed Pressure ◽  
Similar Chemical ◽  
Supported Ionic Liquid Membranes ◽  
Gas Separation Performance

This work aims to explore the gas permeation performance of two newly-designed ionic liquids, [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2], in supported ionic liquid membranes (SILM) configuration, as another effort to provide an overall insight on the gas permeation performance of functionalized-ionic liquids with the [C2mim]+ cation. [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2] single gas separation performance towards CO2, N2, and CH4 at T = 293 K and T = 308 K were measured using the time-lag method. Assessing the CO2 permeation results, [C2mim][CF3BF3] showed an undermined value of 710 Barrer at 293.15 K and 1 bar of feed pressure when compared to [C2mim][BF4], whereas for the [C2mim][CF3SO2C(CN)2] IL an unexpected CO2 permeability of 1095 Barrer was attained at the same experimental conditions, overcoming the results for the remaining ILs used for comparison. The prepared membranes exhibited diverse permselectivities, varying from 16.9 to 22.2 for CO2/CH4 and 37.0 to 44.4 for CO2/N2 gas pairs. The thermophysical properties of the [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2] ILs were also determined in the range of T = 293.15 K up to T = 353.15 K at atmospheric pressure and compared with those for other ILs with the same cation and anion’s with similar chemical moieties.

Efficient synthesis of quinazoline-2,4(1H,3H)-diones from CO2using ionic liquids as a dual solvent–catalyst at atmospheric pressure

2014 ◽  
Vol 16 (1) ◽  
pp. 221-225 ◽  
Author(s):  
Wenjing Lu ◽  
Jun Ma ◽  
Jiayin Hu ◽  
Jinliang Song ◽  
Zhaofu Zhang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Efficient Synthesis

scholarly journals The synthesis of poly(phenylene sulfide sulfone) in ionic liquids at atmospheric pressure

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39604-39610 ◽  
Author(s):  
Dan He ◽  
Ying Wu ◽  
Zhengping Liu ◽  
Tuo Zhao
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
High Performance ◽  
Mild Conditions ◽  
High Performance Polymer ◽  
Conventional Methods ◽  
Phenylene Sulfide

High performance polymer poly(phenylene sulfide sulfone) was prepared under mild conditions based on 4,4-difluorodiphenylsulfone and Na2S in i-pmim PF6 (IL)/MImBS (ZI) at atmospheric pressure and compared with conventional methods.

scholarly journals Dehydration of bioethanol with both pure ionic liquids and an ionic liquid anchored to mesoporous silica: A comparative study

2018 ◽  
Vol 8 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Luz A. Carreño-Díaz
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Raw Materials ◽  
Covalent Bond ◽  
Mass Ratio ◽  
Relative Volatility ◽  
Imidazolium Chloride ◽  
The Matrix ◽  
Mesoporous Sio2

Bioethanol is produced by the fermentation of different raw materials; anhydrous ethanol is used as biofuel. This article reports the study of the dehydration of bioethanol by breaking the azeotrope, using ionic liquids as entrainers. Three ionic liquids (LIs) [EMIM][Cl], [EMIM][OAc], and [BMIM][Cl] were tested as entrainers; the behavior of ternary mixes of bioethanol-water-LI were evaluated through the activity coefficients and the relative volatility of bioethanol at 80°C and atmospheric pressure. In this first study it was concluded that the [EMIM][Cl] was the most effective IL for dehydration purposes: bioethanol (93.45 % v/v) after three cycles of extraction was (99.20 % v/v) when a mass ratio bioethanol-IL of 0.55 was used. Based on the first study, a composite was prepared by anchoring the LI 1-ethyl-(3-trimethoxysilil) propyl imidazolium chloride to mesoporous SiO2. The composite was characterized and it has been confirmed that there is a covalent bond between the IL and the matrix. The material was tested as dehydrating agent; results of these two studies were compared and showed that the pure ionic liquids could be used as entrainers in extractive distillations, breaking water-ethanol azeotrope, also showing the same ionic liquids able to be anchored to matrices as solid composites for dehydration, offering additional advantages such as selectivity, less time consuming, recyclability, and significantly diminishes (84%), the requirement for the amount of the IL.

Sign in / Sign up

Export Citation Format

Share Document