期刊
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
卷 35, 期 3, 页码 692-699出版社
WILEY
DOI: 10.1002/ep.12274
关键词
cloud point extraction; non-ionic surfactant; ionic liquid; Langmuir isotherm; Coralene red
Cloud point extraction was carried out to remove Coralene red (CR) dye from aqueous solution using tetra ethyl ammonium tetrafluoroborate [TEA(BF4)] ionic liquid as an additive with non-ionic surfactant Triton X-114. The effects of different operating parameters such as concentration of surfactant; IL and dye, time, temperature on extraction of dye has been studied in detail. The extraction of dye was found to be increased with temperature, time, surfactant concentration, and IL concentration. A developed Langmuir isotherm was used to calculate the required feed surfactant concentration along with 0.1 wt % TEA(BF4) IL for the removal capacity of CR dye up to 90%. The effects of temperature and concentration of surfactant on various thermodynamic parameters were observed. The solvent extraction method using hexane as an extracting medium for the recovery of surfactant from the coacervate phase was also examined. (C) 2015 American Institute of Chemical Engineers Environ Prog, 35: 692-699, 2016
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