Relation between differential solubility of cellulose and lignin in ionic liquids and activity coefficients

RSC Advances ◽  
2013 ◽  
Vol 3 (10) ◽  
pp. 3453 ◽  
Author(s):  
Ana Casas ◽  
Salama Omar ◽  
Jose Palomar ◽  
Mercedes Oliet ◽  
M. Virginia Alonso ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Activity Coefficients ◽  
Differential Solubility

scholarly journals Assessment of certain ionic liquids for separation of binary mixtures based on gamma infinity data measurements

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7092-7107 ◽  
Author(s):  
M. Karpińska ◽  
M. Wlazło ◽  
D. Ramjugernath ◽  
P. Naidoo ◽  
U. Domańska
Keyword(s):  
Ionic Liquids ◽  
Binary Mixtures ◽  
Activity Coefficients ◽  
Thermodynamic Functions ◽  
Partition Coefficients

Limiting activity coefficients for 64 solutes in [BzMIM][NTf2] and [BzMIM][DCA], the gas–liquid partition coefficients, KL, thermodynamic functions and selectivity for hexane/hex-1-ene, cyclohexane/cyclohexene and ethylbenzene/styrene separation were presented.

scholarly journals Measurements of Activity Coefficients at Infinite Dilution for Organic Solutes in the Ionic Liquids N-Ethyl- and N-Octyl-N-methylmorpholinium Bis(trifluoromethanesulfonyl)imide. A Useful Tool for Solvent Selection

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 634 ◽  
Author(s):  
Łukasz Marcinkowski ◽  
Joachim Eichenlaub ◽  
Elham Ghasemi ◽  
Żaneta Polkowska ◽  
Adam Kloskowski
Keyword(s):  
Ionic Liquids ◽  
Organic Compounds ◽  
Activity Coefficients ◽  
Infinite Dilution ◽  
Retention Data ◽  
Separation Processes ◽  
Study Results ◽  
Conscious Choice ◽  
Potential Applications ◽  
Partial Molar Enthalpies

In recent years, many papers describing ionic liquids (IL) as promising solvents in separation techniques have been published. The conscious choice of appropriate ionic liquid as absorption media in effective extraction of selected types of analytes requires deeper understanding of the analyte−IL interactions. Therefore, intensive research is conducted to determine the values of activity coefficient at infinite dilution, which allows us to characterize the nature of these interactions. Based on the inverse gas chromatography retention data, activity coefficients at infinite dilution γ 13 ∞ of 48 different organic compounds in the ionic liquids N-ethyl-N-methylmorpholinium bis(trifluoromethanesulfonyl)imide [C2C1Mor][TFSI] and N-octyl-N-methylmorpholinium bis(trifluoromethanesulfonyl)imide [C8C1Mor][TFSI] were determined. The measurements covered a broad range of volatile organic compounds, including n-alkanes, n-alkenes, n-alkynes, alcohols, aldehydes, ketones, aromatic compounds and common polar solvents, representing different types of interactions. Activity coefficients at infinite dilution were measured in the temperature range from 313.15 to 363.15 K. The excess partial molar enthalpies and entropies at infinite dilution were determined. Selectivity at infinite dilution was also calculated for exemplary separation processes in the hexane/benzene system. The obtained results were analyzed and compared with literature data for ionic liquids containing the same anion [TFSI]¯ and different cations. The study results indicate that some potential applications of the investigated ionic liquids in separation problems exist.

Differential Solubility of Ethylene and Acetylene in Room-Temperature Ionic Liquids: A Theoretical Study

2012 ◽  
Vol 116 (13) ◽  
pp. 3944-3953 ◽  
Author(s):  
Xu Zhao ◽  
Huabin Xing ◽  
Qiwei Yang ◽  
Rulong Li ◽  
Baogen Su ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Theoretical Study ◽  
Room Temperature Ionic Liquids ◽  
Differential Solubility

scholarly journals Infinite Dilution Activity Coefficients of Solutes Dissolved in Two Trihexyl(tetradecyl)phosphonium Ionic Liquids

2014 ◽  
Vol 59 (6) ◽  
pp. 1877-1885 ◽  
Author(s):  
Fabrice Mutelet ◽  
Dominique Alonso ◽  
Timothy W. Stephens ◽  
William E. Acree ◽  
Gary A. Baker
Keyword(s):  
Ionic Liquids ◽  
Activity Coefficients ◽  
Infinite Dilution ◽  
Infinite Dilution Activity Coefficients ◽  
Phosphonium Ionic Liquids
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