Extraction Behavior of Mercury(II) and Cadmium(II) in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 8-Hydroxyl-Quinoline

Abstract:

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The extraction behavior of metal ions (Hg2+ and Cd2+, M2+) was investigated in ionic liquid (IL) extraction system using 1-butyl-3-methyl- imidazolium hexafluorophosphate ionic liquid ([Bmim]PF6) as extraction solvent and 8-hydroxyl-quinoline (HQ) as extractant. The extraction percentage of M2+ using [Bmim]PF6 was less than 5% without HQ. When sufficient HQ was included in IL phase, the extraction percentage of M2+ could be higher than 98%. The extracted species in the M2+-[Bmim]PF6-HQ system was neutral MQ2 and the recovery of M2+ extracted into [Bmim]PF6 can be achieved using 0.25 mol•L-1 HNO3 as stripping agent. [Bmim]PF6 can be recycled in the experiment.

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Periodical:

Edited by:

Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen

Pages:

1103-1106

DOI:

10.4028/www.scientific.net/AMM.117-119.1103

Citation:

Z. W. Pan et al., "Extraction Behavior of Mercury(II) and Cadmium(II) in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 8-Hydroxyl-Quinoline", Applied Mechanics and Materials, Vols. 117-119, pp. 1103-1106, 2012

Online since:

October 2011

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$35.00

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