Ionic Liquids for Chloromethane/Isobutane Distillative Separation: Express Screening

Mokrushin V, Mokrushina L, Arlt W, Assenbaum D, Wasserscheid P, Petri M, Wewers W (2010)

Publication Status: Published

Publication Type: Journal article

Publication year: 2010

Journal

Chemical Engineering & Technology Wiley-VCH Verlag

Publisher: Wiley-VCH Verlag

Book Volume: 33

Pages Range: 993-997

Journal Issue: 6

DOI: 10.1002/ceat.200900501

Abstract

The present study centres on room-temperature ionic liquids (ILs) as entrainers in extractive distillation of chloromethane/isobutane mixtures. The binary system, chloromethane/isobutene, is an azeotropic system. In this study, IL entrainers are shown to be able to break the azeotrope and, thus, assure the separation in the whole range of chloromethane/isobutane ratios. ILs formed from different cations and anions are considered and their influence on chloromethane/isobutane separation is explored. Among the ILs studied, those containing the trifluoromethanesulfonate ([CF(3)SO(3)](-)) or tricyanomethanide ([C(CN)(3)](-)) anion are demonstrated to exhibit an enhanced potential for chloromethane/isobutane separation compared to the corresponding ILs based on the bis(trifluoromethylsulfonyl)imide ([Tf(2)N](-)) anion. Moreover, the ILs enclosing these anions are cheaper than those with the [Tf(2)N](-) anion. Thus, the separation ability, solubility of chloromethane/isobutane mixtures, and costs of IL entrainers can be adjusted by the right choice of cations and anions.

Authors with CRIS profile

Vladimir Mokrushin Lehrstuhl für Thermische Verfahrenstechnik Liudmila Mokrushina Lehrstuhl für Thermische Verfahrenstechnik Wolfgang Arlt Lehrstuhl für Thermische Verfahrenstechnik Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik

Involved external institutions

Wacker Chemie AG DE Germany (DE)

How to cite

APA:

Mokrushin, V., Mokrushina, L., Arlt, W., Assenbaum, D., Wasserscheid, P., Petri, M., & Wewers, W. (2010). Ionic Liquids for Chloromethane/Isobutane Distillative Separation: Express Screening. Chemical Engineering & Technology, 33(6), 993-997. https://dx.doi.org/10.1002/ceat.200900501

MLA:

Mokrushin, Vladimir, et al. "Ionic Liquids for Chloromethane/Isobutane Distillative Separation: Express Screening." Chemical Engineering & Technology 33.6 (2010): 993-997.

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