Activity coefficients of hydrocarbon solutes at infinite dilution in the ionic liquid, 1-methyl-3-octyl-imidazolium chloride from gas-liquid chromatography

被引：83

作者：

David, W

Letcher, TM ^{[1
]}

Ramjugernath, D

Raal, JD

机构：

[1] Univ KwaZulu Natal, Sch Pure & Appl Chem, ZA-4001 Durban, South Africa

[2] Univ KwaZulu Natal, Sch Chem Engn, ZA-4001 Durban, South Africa

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2003年 / 35卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

ionic liquids; activity coefficients; hydrocarbon solutes; solvent 1-methyl-3-octyl-imidazolium chloride;

D O I：

10.1016/S0021-9614(03)00091-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Activity coefficients for hydrocarbon solutes at infinite dilution in 1-methyl-3-octylimidazolium chloride have been measured using the medium pressure gas-liquid chromatography method. The hydrocarbon solutes used were n-pentane, n-hexane, n-heptane, n-octane, 1-hexene, 1-heptene, 1-octene, 1-hexyne, 1-heptyne, 1-octyne, cyclopentane, cyclohexane, cycloheptane, benzene, and toluene. Activity coefficients at infinite dilution were determined at the following three temperatures (298.15, 308.15, and 318.15) K. Selectivities for benzene and the hydrocarbons are presented and the results indicate that 1-methyl-3-octyl-imidazolium chloride is a reasonable solvent for the separation of an alkane or an alkene from benzene. (C) 2003 Elsevier Science Ltd. All rights reserved.

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页码：1335 / 1341

页数：7

相关论文

共 20 条

[1] Examination of ionic liquids and their interaction with molecules, when used as stationary phases in gas chromatography [J].

Armstrong, DW ;

He, LF ;

Liu, YS .

ANALYTICAL CHEMISTRY, 1999, 71 (17) :3873-3876

[2] Recovery of organic products from ionic liquids using supercritical carbon dioxide [J].

Blanchard, LA ;

Brennecke, JF .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2001, 40 (01) :287-292

[3]

Conder J. R., 1979, PHYSIOCHEMICAL MEASU

[4] PREDICTION OF SECOND VIRIAL COEFFECIENTS OF MIXTURES FROM PRINCIPLE OF CORRESPONDING STATES [J].

CRUICKSHANK, AJ ;

WINDSOR, ML ;

YOUNG, CL .

TRANSACTIONS OF THE FARADAY SOCIETY, 1966, 62 (525P) :2341-+

[5] EFFECT OF GAS IMPERFECTION ON GLC MEASUREMENTS - A REFINED METHOD FOR DETERMINING ACTIVITY COEFFICIENTS AND 2 VIRIAL COEFFICIENTS [J].

EVERETT, DH .

TRANSACTIONS OF THE FARADAY SOCIETY, 1965, 61 (512P) :1637-&

[6] Thermodynamic properties of mixtures containing ionic liquids. 2. Activity coefficients at infinite dilution of hydrocarbons and polar solutes in 1-methyl-3-ethyl-imidazolium bis(trifluoromethyl-sulfonyl) amide and in 1,2-dimethyl-3-ethyl-imidazolium bis(trifluoromethyl-sulfonyl) amide using gas-liquid chromatography [J].

Heintz, A ;

Kulikov, DV ;

Verevkin, SP .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2002, 47 (04) :894-899

[7] Thermodynamic properties of mixtures containing ionic liquids.: Activity coefficients at infinite dilution of polar solutes in 4-methyl-N-butyl-pyridinium tetrafluoroborate using gas-liquid chromatography [J].

Heintz, A ;

Kulikov, DV ;

Verevkin, SP .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2002, 34 (08) :1341-1347

[8] Thermodynamic properties of mixtures containing ionic liquids.: 1.: Activity coefficients at infinite dilution of alkanes, alkenes, and alkylbenzenes in 4-methyl-n-butylpyridinium tetrafluoroborate using gas-liquid chromatography [J].

Heintz, A ;

Kulikov, DV ;

Verevkin, SP .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2001, 46 (06) :1526-1529

[9] INTERMOLECULAR FORCES BETWEEN UNLIKE MOLECULES - A MORE COMPLETE FORM OF THE COMBING RULES [J].

HUDSON, GH ;

MCCOUBREY, JC .

TRANSACTIONS OF THE FARADAY SOCIETY, 1960, 56 (06) :761-766

[10] Measurement of activity coefficients at infinite dilution using gas-liquid chromatography. 13. Results for various solutes with the stationary phases 1-ethylpyrrolidin-2-one and 1,5-dimethylpyrrolidin-2-one [J].

Krummen, M ;

Letcher, TM ;

Gmehling, J .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2002, 47 (04) :906-910