Study of the extraction properties of choline dicyanamide ionic liquid

IF 2.2 3区工程技术 Q3 CHEMISTRY, PHYSICAL

Journal of Chemical Thermodynamics Pub Date : 2025-01-17 DOI:10.1016/j.jct.2025.107456

Michał Wlazło , Agnieszka Kłosińska , Andrzej Marciniak

引用次数: 0

Abstract

The extraction properties of choline dicyanamide, namely the selectivities and capacities for heptane/benzene, heptane/thiophene, heptane/pyridine, and heptane/1-nitropropane separation problems, were determined and compared to the literature values for other ionic liquids based on dicyanamide anion. The extraction parameters were calculated from activity coefficients at infinite dilution determined by gas–liquid chromatography at the temperatures (298.15 – 368.15) K. The density of the investigated ionic liquid was also measured at this temperature range. Additionally, to better understand the interactions between the ionic liquid and different groups of solvents, activity coefficients at infinite dilution were determined for various solutes: alkanes, cycloalkanes, alkenes, alkynes, aromatic hydrocarbons, alcohols, ethers, ketones, esters, butanal, thiophene, nitrogen compounds and water in the ionic liquid choline dicyanamide at this temperature range.

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胆碱双氰胺离子液体的提取性能研究

测定了胆碱双氰胺的萃取性能，即对庚烷/苯、庚烷/噻吩、庚烷/吡啶和庚烷/1-硝基丙烷的分离问题的选择性和萃取能力，并与文献中其他基于双氰胺阴离子的离子液体的萃取值进行了比较。在298.15 ~ 368.15 k的温度下，用气液色谱法测定无限稀释条件下的活度系数，计算萃取参数。在此温度范围内，测定了离子液体的密度。此外，为了更好地了解离子液体与不同基团溶剂之间的相互作用，在无限稀释下测定了离子液体胆碱二氰酰胺中不同溶质的活度系数：烷烃、环烷烃、烯烃、炔烃、芳烃、醇、醚、酮、酯、丁醛、噻吩、氮化合物和水。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Chemical Thermodynamics 工程技术-热力学

CiteScore

5.60

自引率

15.40%

发文量

199

审稿时长

79 days

期刊介绍： The Journal of Chemical Thermodynamics exists primarily for dissemination of significant new knowledge in experimental equilibrium thermodynamics and transport properties of chemical systems. The defining attributes of The Journal are the quality and relevance of the papers published. The Journal publishes work relating to gases, liquids, solids, polymers, mixtures, solutions and interfaces. Studies on systems with variability, such as biological or bio-based materials, gas hydrates, among others, will also be considered provided these are well characterized and reproducible where possible. Experimental methods should be described in sufficient detail to allow critical assessment of the accuracy claimed. Authors are encouraged to provide physical or chemical interpretations of the results. Articles can contain modelling sections providing representations of data or molecular insights into the properties or transformations studied. Theoretical papers on chemical thermodynamics using molecular theory or modelling are also considered. The Journal welcomes review articles in the field of chemical thermodynamics but prospective authors should first consult one of the Editors concerning the suitability of the proposed review. Contributions of a routine nature or reporting on uncharacterised materials are not accepted.