An ionic liquid extraction process for the separation of indole from wash oil

2015 ◽  
Vol 17 (7) ◽  
pp. 3783-3790 ◽  
Author(s):  
Tiantian Jiao ◽  
Xulei Zhuang ◽  
Hongyan He ◽  
Lihong Zhao ◽  
Chunshan Li ◽  
...  

Imidazolium-based ionic liquids (IBILs) were developed as an extraction medium to separate indole from wash oil. The process is environmentally friendly and the IBILs could be easily recycled. The extraction conditions are very mild. A separation process is proposed based on the process simulation.

2016 ◽  
Vol 37 (1) ◽  
pp. 133-148 ◽  
Author(s):  
Kamil Kamiński ◽  
Laurence R. Weatherley ◽  
Jerzy Petera

Abstract Liquid-liquid extraction provides an environmentally friendly process as an alternative to azeotropic distillation, pervaporation and reverse osmosis because these techniques require the use of large amounts of energy, may involve volatile organic compounds, and operation at high pressure. Ionic liquids (ILs) continue to gain wide recognition as potential environmentally friendly solvents due to their unique properties. However due to their current high cost, their use in industry is seriously limited without an efficient methodology for recovery and recycle. In this paper we describe an innovative methodology for a liquid-liquid extraction process based on an electrically induced emulsion of an ionic liquid as the extracting solvent dispersed in an organic mixture. This offers a most efficient exploitation of the solvent. On the other hand we present our own design of a pilot (semi-industrial) scale extractor based on this methodology and which demonstrates effective recovery of the ionic liquid. In order to achieve this goal we used a numerical modelling tool implemented using our own simulation software based on the finite element method. We also used our original previous experience with generating and investigating liquid-liquid electrosprays using phase Doppler anemometry. Finally we present recommendations for contactor geometry and for the preferred operating conditions for the extractor.


2012 ◽  
Vol 48 (26) ◽  
pp. 3185 ◽  
Author(s):  
Viacheslav Zgonnik ◽  
Chantal Zedde ◽  
Yves Génisson ◽  
Marie-Rose Mazières ◽  
Jean-Christophe Plaquevent

2011 ◽  
Vol 391-392 ◽  
pp. 1354-1357 ◽  
Author(s):  
Bai Lin Li ◽  
Hua Ding Liang ◽  
Ai Guo Zhong ◽  
Dan Qian Xu

Novel SO3H-functionalized ionic liquids were successfully applied as catalysts for synthesis of xanthenediones under microwave irradiation in Aqueous. Various types of Xanthenes were provided in 90-97% yields using the catalytic system of [(HSO3-p)2im][CF3SO3]/H2O. The products could be conveniently separated from the reaction mixture by filtration and the dissolved catalyst could be reused without any treatment, which of the separation process was performed in water without using any organic solvents. The method not only has the adventages of shrot time and simple operation, but also is environmentally friendly.


2013 ◽  
Vol 15 (11) ◽  
pp. 3160 ◽  
Author(s):  
Sil Wellens ◽  
Remi Goovaerts ◽  
Claudia Möller ◽  
Jan Luyten ◽  
Ben Thijs ◽  
...  

2019 ◽  
Vol 1 (2) ◽  
pp. 1
Author(s):  
Bilal Kazmi ◽  
Awan Zahoor ◽  
Hashmi Saud ◽  
Zafar Khan Ghouri

In this work we examined the industrial scale extraction process of ultra-low sulfur diesel with the help of simulation software ASPEN Plus®. This work focuses on the [Cnmim] [BF4] (imidazolium-based) ionic liquid and employed it in the extractive desulfurization of the dibenzothiophene (DBT) from the model diesel fuel under a very mild process condition. UNIFAC (uniquasi functional activity) was chosen as the thermodynamic method to model the ionic liquid on ASPEN Plus® and different physical and chemical properties were then taken from the literature to be incorporated in the simulation model. Different parametric analysis was studied for the removal of thiophene-based compounds from the model diesel. The results acquired shows the significance of imidazolium-based ionic liquids (ILs) for the extraction of S-contents from the liquid fuels at an optimal process conditions of 40 ℃ and 2 bar pressure with the 2.8: 1 ratio of ionic liquid and model diesel which validates the experimental results obtained previously in the literature.


2020 ◽  
Vol 22 (11) ◽  
pp. 3433-3440 ◽  
Author(s):  
Minh Tam Hoang ◽  
Ngoc Duy Pham ◽  
Yang Yang ◽  
Vincent Tiing Tiong ◽  
Chao Zhang ◽  
...  

An ionic liquid-based green synthesis of perovskite nanocrystals towards practical applications.


ChemInform ◽  
2012 ◽  
Vol 43 (30) ◽  
pp. no-no
Author(s):  
Viacheslav Zgonnik ◽  
Chantal Zedde ◽  
Yves Genisson ◽  
Marie-Rose Mazieres ◽  
Jean-Christophe Plaquevent

2021 ◽  
Author(s):  
João Serra ◽  
Liliana Fernandes ◽  
Daniela Correia ◽  
Carmen R Tubio ◽  
Jose Luis Vilas ◽  
...  

Naturally derived polymer based on iota carrageenan and different ammonium and imidazolium based ionic liquids (ILs) are used for the development of environmentally friendly soft actuators. The influence of IL...


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Xiaowei Sun ◽  
Zhimin Jin ◽  
Lei Yang ◽  
Jingwei Hao ◽  
Yuangang Zu ◽  
...  

An ionic liquid-based ultrasonic-assisted extraction method has been developed for the effective extraction of procyanidins fromLarix gmeliniibark. So as to evaluate the performance of ionic liquids in ultrasonic-assisted extraction process, the effects caused by changes in the anion and the alkyl chain length of the cation on the extraction efficiency were investigated in this paper. The results indicated that the characteristics of anions had remarkable effects on the extraction efficiency of procyanidins, and 1-butyl-3-methylimidazolium bromide ([Bmim]Br) aqueous solution was the best among the investigated ionic liquids. The optimum conditions for the extraction were as follows: [Bmim]Br concentration 1.25 M, soak time 3 h, solid-liquid ratio 1 : 10, ultrasonic power 150 W, and ultrasonic time 30 min. This work not only introduces a simple, green, and highly efficient sample preparation method for extraction of procyanidins fromL. gmeliniibark, but also reveals the tremendous application potential of ionic liquids.


2013 ◽  
Vol 772 ◽  
pp. 303-308 ◽  
Author(s):  
Ben Yong Han ◽  
Wu Di Zhang ◽  
Yu Bao Chen ◽  
Fang Yin ◽  
Shi Qing Liu ◽  
...  

onic liquid is a green catalyzer and solvent which can be designed by changing the structure of its cation or anion. Ionic liquid has been used in diverse chemical reactions. Especially, Ionic liquids as environmentally friendly catalysts were applied in biodiesel production. Preparation of biodiesel catalyzed by ionic liquids have many merits, such as no corrosion to equipment, no pollution to environment, and reusability. In this paper, the advances in the base ionic liquids catalysts and their application in biodiesel production were reviewed. The characterization of the ionic liquids were summarized. In addition, the prospect for the application of the basic ionic liquids to catalyze biodiesel production was also stated. Since the cost of ionic liquid may be an issue, there are some challenges to be faced, such as the production of ionic liquids with low cost, easy recovery and with the possibility of reutilization of the catalyst for several cycles.


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