Concentration of ionic liquids by nanofiltration for recycling: Filtration behavior and modeling
Concentration of ionic liquids by nanofiltration for recycling: Filtration behavior and modeling
复制标题
通过纳滤浓缩离子液体以进行回收:过滤行为和建模
DOI:
10.1016/j.seppur.2016.03.042
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发表时间:
2016-06
影响因子:
8.6
通讯作者:
Yinhua Wan
中科院分区:
文献类型:
--
作者:
Junfeng Wang;Jianquan Luo;Xiangping Zhang;Yinhua Wan
The study of filtration behavior in the concentration of ionic liquids (ILs) using nanofiltration (NF) membranes is of significance to recycle IL from the solution obtained by the dissolution of natural polymer and raw biomass. Firstly, the transmembrane pressure for the binary 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) - H2O, 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) - H2O and 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4) - H2O systems over the flux range from 6.64 to 132.74 L m−2h−1was examined using the dead-end filtration cell. Then, the solution-diffusion transport model was used to calculate the permeate flux of IL on the basis of radii of anion and cation in IL taken from literature. The real IL retention with NF270 was lower than that with NF90 which attained around 96% for [BMIM]Cl IL at a permeate flux of 53.10 L m−2h−1. For the two membranes, the retention of [BMIM]Cl was higher than that of [BMIM]BF4even if the radius of [BMIM]BF4was slightly larger. Finally, under the optimal experimental parameters, [BMIM]Cl in the binary system of [BMIM]Cl-H2O can be concentrated to approximately 20 weight percent (wt%). All of these will provide necessary fundamental data for the application of NF technology to concentrate IL in the IL-H2O system.
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DOI:
10.5860/choice.35-0927
发表时间:
1984-05
期刊:
--
影响因子:
--
作者:
L. Cussler
通讯作者:
L. Cussler
影响因子:
2.8
作者:
A. Mohammad
通讯作者:
A. Mohammad
影响因子:
9.5
作者:
Vrijenhoek, EM;Hong, S;Elimelech, M
通讯作者:
Elimelech, M
影响因子:
1.9
作者:
Q. Ren;J. Wu;Jun Zhang
通讯作者:
Q. Ren;J. Wu;Jun Zhang
影响因子:
4.9
作者:
Kawanami, H;Sasaki, A;Ikushima, Y
通讯作者:
Ikushima, Y