Article
Engineering, Chemical
Wei Qi, Junhui He, Mengjie Li, Maolin Zhai, Long Zhao
Summary: Rhenium has important applications in various industries, but its low concentration in the Earth's crust necessitates research on its separation and extraction. This study explored the extraction of rhenium using a demulsification method with an alkyl imidazolium ionic liquid-based microemulsion. Factors such as components of the microemulsion, temperature, acid concentration, and competitive ions were considered. The study found that the components of the microemulsion, alkyl chain length, and acid concentration significantly affected the extraction efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Min Chen, Chengna Dai, Gangqiang Yu, Ning Liu, Ruinian Xu, Ning Wang, Biaohua Chen
Summary: This study proposes and systematically investigates the technology for absorbing MTBE with ionic liquids, from the molecular level to system scale. The research demonstrates that ILs are potential absorbents, and IL-based mixed absorbents may be a better strategy for achieving highly efficient absorption of MTBE, reducing product gas loss and energy consumption.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yan Gao, Liangting Cheng, Ruimin Gao, Guangfa Hu, Jianshe Zhao
Summary: The study involves designing and preparing new polyionic liquid catalyst based on polyoxometalates, which shows high desulfurization activity. Additionally, supported catalysts were synthesized by loading polyoxometalate derivatives on the surface of graphene oxide, demonstrating excellent activity and recyclability in extraction-oxidation desulfurization.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Lili Jiang, Ke Mei, Kaihong Chen, Rina Dao, Haoran Li, Congmin Wang
Summary: An efficient method for predicting the capture of SO2 from flue gas using imidazolium ionic liquids was reported. Through quantitative calculations and design, the absorption performance of various imidazolium ionic liquids for SO2 was predicted and validated through experiments.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Physical
Yan Gao, Diana Julia, Dinis F. Silva, Baltazar de Castro, Jianshe Zhao, Salete S. Balula
Summary: The use of peroxopolyoxometalates as oxidative catalysts in desulfurization systems has led to improved efficiency and sustainability. Specifically, Venturello peroxotungstate has shown superior performance in desulfurizing model diesel compared to analogues, with the ability to be reused for multiple cycles. This simple and cost-effective process allows for the reuse of catalyst and solvent without the need for additional techniques.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Koyeli Das, Rabi Narayan Patra, Ramesh L. Gardas
Summary: Research on host-guest chemistry enhances the bioavailability of guest molecules through remediation processes. This study synthesized a series of novel nitro-substituted imidazolium-based ionic liquids and investigated their inclusion complexes with β-cyclodextrin, as well as their potential application in fuel desulfurization.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Yasen Dai, Zhengrun Chen, Xingyi Liu, Jiafu Xing, Yuyang Jiao, Dingchao Fan, Zhaoyou Zhu, Peizhe Cui, Yanyue Lu, Yinglong Wang
Summary: The study investigates the interaction between different ionic liquids and methyl tert butyl ether/methanol, confirming the key role of anions in the extraction process. Molecular dynamics simulations are shown to predict extraction performance accurately, even without phase equilibrium data. Furthermore, ionic liquid liquid-liquid extraction proves to be a cost-saving alternative in comparison to conventional solvents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Hassan M. A. Hassan, Mohamed A. Betiha, Mosaed S. Alhumaimess, Thamer S. Alraddadi, Shimaa K. Mohamed, Sherif A. Younis, Ayoub Abdullah Alqadami, Ibrahim Hotan Alsohaimi
Summary: Sulfur compounds produced by the combustion of fossil fuels are a major component of air pollution. In this study, PMO-IL-based heterogeneous catalysts were synthesized and tested for desulfurization of aromatic sulfur compounds. The results showed that MnO4-PMO-IL and HPW12O40-PMO-IL catalysts had the highest desulfurization efficiency at a smaller O/S ratio, making them effective catalysts for the oxidative desulfurization of fuel.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Thermodynamics
P. V. S. S. Rama Rao, T. S. Krishna, Ponnuri Bharath, Ranjan Dey, D. Ramachandran
Summary: This study examines the properties of binary blends of 1-butyl-3-methylimidazolium bis(trifluromethylsulfonyl)imide ionic liquid with Ethyl acetate at various temperatures, discussing molecular interactions and temperature effects through excess properties. The results are adequately fitted with the Redlich-Kister polynomial equation, providing insight into molecular interactions and temperature effects.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2021)
Article
Chemistry, Physical
Suseeladevi Asha, Deepthi Thomas, K. P. Vijayalakshmi, Benny K. George
Summary: The thermal stability and decomposition mechanisms of two pyrrolidinium based ionic liquids were investigated using Py-GC-MS and DFT, revealing different decomposition pathways and comparable activation energy parameters between experimental and computational methods.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Hang Xu, Shaokang Wang, Fengmin Wu, Qinlin Yuan, Yafei Guo, Yinke Zhang, Xuefeng Wei, Jun Zhang
Summary: One disadvantage of using inorganic solid catalysts is the production of solid waste. This study developed a fully organic supported ionic liquid catalyst for desulfurization. The catalyst showed excellent dibenzothiophene removal efficiency and remained effective even after six regeneration cycles. The likely mechanism involves the extraction and oxidation of DBT by the catalyst/oxone system.
Article
Chemistry, Physical
Ksenia S. Egorova, Marina M. Seitkalieva, Alexey S. Kashin, Evgeniy G. Gordeev, Anna V. Vavina, Alexandra V. Posvyatenko, Valentine P. Ananikov
Summary: This study investigated the cytotoxicity of chemically relevant imidazolium PILs with different alkyl side chains and compared it with aprotic analogues. The results highlighted the role of anion type in determining the cytotoxicity of ILs with short alkyl side chains. Even low-toxic PILs showed harmful effects on eukaryotic cells when used as cryopreservation agents, and the studied IL/water mixtures tended to form simple solid hydrates due to the weak amphiphilic properties of imidazolium cations with short alkyl side chains.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Environmental
Mengnan Huang, Lixin Kan, Wenyan Zhao, Yuejiao Wang, Ying Xiong, Weijun Shan, Zhenning Lou
Summary: A resin-like imidazolium-based ionic liquid polymer was prepared for selective adsorption of 99Tc, demonstrating high adsorption capacity and selectivity. The polymer showed excellent removal efficiency of 99Tc from simulated waste solution and exhibited super acid and alkaline resistance and stability after long-term immersion.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biotechnology & Applied Microbiology
Yali Zhu, Xin Li, Yujiao Wang, Lujing Ren, Quanyu Zhao
Summary: Lutein, a high-value pigment from microalgae, can be extracted more efficiently using ionic liquid-based methods, with the selection of suitable ionic liquid depending on the specific species of microalgae. Extraction from fresh microalgae showed higher efficiency and reached up to 97.73% under specific experimental conditions.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Polymer Science
Biao Zhang, Guillaume Sudre, Guilhem Quintard, Anatoli Serghei, Julien Bernard, Etienne Fleury, Aurelia Charlot
Summary: This study mixed RAFT-made poly(ionic liquid) chains with an ionic liquid, leading to homogeneous and transparent solutions due to similarities in structure and polarity. Rheology investigation showed that the solution's viscoelastic properties can be finely tuned by adjusting the chain molar mass and concentration. The high ionic conductivity and multi-scale local homogeneity of the PIL/IL solutions were confirmed through X-ray scattering experiments and microscopy analysis.
