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Licensed Unlicensed Requires Authentication Published by De Gruyter July 14, 2015

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

Nurshakirin Hazim Chan, Hanee Farzana Hizaddin, Ramalingam Anantharaj and Tamal Banerjee

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.

Funding statement: Funding: The modeling work reported in this article was financially supported by a research grant number BK005–2013 under the University of Malaya Short Research Fund (BKP) and the University of Malaya Research Grant (UMRG) (RP006E–13SUS) from the University of Malaya, Malaysia.

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Published Online: 2015-7-14
Published in Print: 2015-9-1

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