Imidazolium-based dicationic ionic liquids: highly efficient extractants for separating aromatics from aliphatics

2018 ◽  
Vol 20 (13) ◽  
pp. 3101-3111 ◽  
Author(s):  
Congfei Yao ◽  
Yucui Hou ◽  
Weize Wu ◽  
Shuhang Ren ◽  
Hui Liu
Keyword(s):  
Ionic Liquids ◽  
Distribution Coefficient ◽  
High Selectivity ◽  
Highly Efficient ◽  
Alternative Solvents ◽  
Potential Alternative ◽  
Dicationic Ionic Liquids ◽  
High Distribution Coefficient

Imidazolium-based dicationic ionic liquids (DILs) are potential alternative solvents for the extraction of aromatics from aliphatics with both high selectivity and high distribution coefficient.

Ethylsulphate-Based Ionic Liquids in the Liquid–Liquid Extraction of Pyrrole and Pyridine from Isododecane at 298.15 K

2015 ◽  
Vol 10 (3) ◽  
pp. 161-171 ◽  
Author(s):  
Nurshakirin Hazim Chan ◽  
Hanee Farzana Hizaddin ◽  
Ramalingam Anantharaj ◽  
Tamal Banerjee
Keyword(s):  
Experimental Data ◽  
Ionic Liquids ◽  
Distribution Coefficient ◽  
Significant Role ◽  
Entire Range ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Lle Data ◽  
Denitrification Process ◽  
High Distribution Coefficient

Abstract Ternary liquid-liquid equilibria for four systems containing ionic liquids {1-ethyl-3-methylimidazolium ethylsulphate ([EMIM][EtSO4]) and 1-ethyl-3-methylpyridinium ethylsulphate ([EMPY][EtSO4])}(1)+pyrrole/pyridine(2)+isododecane (3) have been determined at 298.15 K. The solute distribution coefficient and selectivity were calculated from experimental LLE data. All systems showed high distribution coefficient and selectivity values at the entire range of pyrrole or pyridine in feed. The consistency of experimental data was ascertained by applying the Othmer-Tobias and hand equations. Furthermore, the experimental LLE data have been compared and correlated using COSMO-RS, NRTL and UNIQUAC models. The influence of aromatic structure without inside ring of cation has a significant role on denitrification process at 298.15 K.

Highly Efficient and Selective Addition of Hydroxylamine to Nitriles in Ionic Liquids

2014 ◽  
Vol 11 (5) ◽  
pp. 751-756 ◽  
Author(s):  
Attila Voros ◽  
Zoltan Baan ◽  
Geza Timari ◽  
Istvan Hermecz ◽  
Peter Mizsey ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Highly Efficient ◽  
Selective Addition

Synthesis, Characterization and Applications of Dicationic Ionic Liquids in Organic Synthesis

2020 ◽  
Vol 17 (4) ◽  
pp. 450-464
Author(s):  
Mohammad Javaherian ◽  
Seyyed Jafar Saghanezhad
Keyword(s):  
Ionic Liquids ◽  
Organic Synthesis ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Dicationic Ionic Liquids ◽  
Physical And Chemical ◽  
Reaction Media ◽  
And Chemical Properties

Dicationic ionic liquids are an emerging group of Ionic Liquids (ILs) that are currently receiving much attention as green reaction media and catalysts. Because of a great number of possible combinations of cations and anions, the physical and chemical properties of dicationic ionic liquids are more tunable and broader than monocationic ILs. Therefore, their unique properties have made them the target of many applied and fundamental researches. Actually, dicationic ionic liquids are more effective and rather fascinating than traditional monocationic ILs. So, due to greater versatility and diversity, their applications in organic synthesis have been extensively grown. In this review, we have focused on the synthesis, characterization and applications of dicationic ionic liquids, especially, in organic synthesis.

Evaluation of ionic liquids as alternative solvents for aldolase activity: Use of a new automated SIA methodology

Talanta ◽  
2015 ◽  
Vol 141 ◽  
pp. 293-299 ◽  
Author(s):  
Edite Cunha ◽  
Paula C.A.G. Pinto ◽  
M. Lúcia M.F.S. Saraiva
Keyword(s):  
Ionic Liquids ◽  
Alternative Solvents ◽  
Aldolase Activity

15N NMR studies provide insights into physico-chemical properties of room-temperature ionic liquids

2021 ◽  
Author(s):  
Christoph Wiedemann ◽  
David Fushman ◽  
Frank Bordusa
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Chemical Properties ◽  
Room Temperature Ionic Liquids ◽  
15N Nmr ◽  
Nmr Studies ◽  
Physico Chemical ◽  
Alternative Solvents

Ionic liquids (ILs) have gained a lot of attention as alternative solvents in many fields of science in the last two decades. It is known that the type of anion...

Consideration on modeling of Nb sorption onto clay minerals

2020 ◽  
Vol 108 (11) ◽  
pp. 873-877
Author(s):  
Tetsuji Yamaguchi ◽  
Saki Ohira ◽  
Ko Hemmi ◽  
Logan Barr ◽  
Asako Shimada ◽  
...  
Keyword(s):  
Distribution Coefficient ◽  
Clay Minerals ◽  
Safety Assessment ◽  
Distribution Coefficients ◽  
Surface Species ◽  
Complex Species ◽  
Intermediate Depth ◽  
Speciation Model ◽  
Surface Phases ◽  
High Distribution Coefficient

AbstractSorption distribution coefficient (Kd) of niobium-94 on minerals are an important parameter in safety assessment of intermediate-depth disposal of waste from core internals etc. The Kd of Nb on clay minerals in Ca(ClO4)2 solutions were, however, not successfully modeled in a previous study. The high distribution coefficients of Nb on illite in Ca(ClO4)2 solutions were successfully reproduced by taking Ca–Nb–OH surface species into account. Solubility of Nb was studied in Ca(ClO4)2 solutions and the results were reproduced by taking an aqueous Ca–Nb–OH complex species, CaNb(OH)6+, into account in addition to previously reported Nb(OH)6− and Nb(OH)72−. Based on this aqueous speciation model, the Ca–Nb–OH surface species responsible for the sorption of Nb on illite in Ca(ClO4)2 solutions was presumed to be X_OCaNb(OH)6. Although uncertainties exist in the speciation of aqueous Ca–Nb–OH species, the result of this study proposed a possible mechanism for high distribution coefficient of Nb on illite in Ca(ClO4)2 solutions. The mechanism includes Ca–Nb–OH complex formation in aqueous, solid and surface phases.

Synthesis of Guanidinium-Based Poly(ionic liquids) with Nonporosity for Highly Efficient SO2 Capture from Flue Gas

2021 ◽  
Author(s):  
Fei-Feng Mao ◽  
Yan Zhou ◽  
Wenshuai Zhu ◽  
Xiao-Yan Sang ◽  
Zhang-Min Li ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Flue Gas ◽  
Highly Efficient ◽  
So2 Capture
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