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Title: Ionic liquid mediated cloud point extraction of Blue BG dye
Authors: Bhatt, Darshak R
Maheria, Kalpana C
Parikh, Jigisha K
Keywords: Ionic liquid;Cloud point extraction;Nonionic surfactants;Blue BG;Langmuir isotherms;Thermodynamics
Issue Date: 23-Nov-2015
Abstract: Cloud point extraction has been adopted for the separation of Blue BG dye using the ionic liquid, tetraethyl ammonium tetrafluoroborate, as an additive with non-ionic surfactant Triton X-100. The effects of various operating parameters such as temperature, time and concentrations of surfactant, dye and IL on extraction of dye have been studied in detail to find out the optimum conditions. The extraction of dye is found to increase with increase in temperature, time, surfactant concentration and IL concentration. The Langmuir isotherm has been used to compute the feed surfactant concentration required for the removal of Blue BG dye up to an extraction efficiency of 90%. The effects of temperature and concentration of surfactant on various thermodynamic parameters have been examined; the values of G0  increases with temperature and decreases with surfactant concentration. The values of H0  and S0  increase with surfactant concentration.
Page(s): 1409-1413
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.54A(11) [November 2015]

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