The application of nanofiltration membrane for recovering lithium from salt lake brine

doi:10.1016/j.desal.2019.114081

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	The application of nanofiltration membrane for recovering lithium from salt lake brine
	Li, Yan; Zhao, YouJing; Wang, Huaiyou; Wang, Min
	2019-10-15
发表期刊	DESALINATION
ISSN	0011-9164
卷号	468
摘要	In the current study, the applicability of nanofiltration membrane for recovering lithium from salt lake brine with a high magnesium-to-lithium mass ratio was evaluated under different operating pressure, temperature, multi-ion presence, and concentration ratio conditions. The results showed that the yield of lithium and its separation from magnesium increase with pressure, with the rejection of magnesium reaching 92% at 3.5 MPa. The maximum membrane flux of 50 L/m(2) h is achieved at 313 K, while the separation efficiency decreases with increasing temperature. Furthermore, the existing sodium and potassium compete with lithium to pass through the nanofiltration membrane. The yield of lithium reaches 99% when the concentration ratio is 4. However, membrane flux and separation efficiency decrease with increasing concentration ratio. Ionic fractionation is found to be governed by the special properties of the ions, dielectric exclusion, and steric hindrance. Our results indicate that DK membrane shows considerable promise as a means to separate magnesium and lithium and to recover lithium from salt lake brine with high magnesium-to-lithium mass ratios.
DOI	10.1016/j.desal.2019.114081
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34114
专题	盐湖资源与化学实验室中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Li, Yan,Zhao, YouJing,Wang, Huaiyou,et al. The application of nanofiltration membrane for recovering lithium from salt lake brine[J]. DESALINATION,2019,468.
APA	Li, Yan,Zhao, YouJing,Wang, Huaiyou,&Wang, Min.(2019).The application of nanofiltration membrane for recovering lithium from salt lake brine.DESALINATION,468.
MLA	Li, Yan,et al."The application of nanofiltration membrane for recovering lithium from salt lake brine".DESALINATION 468(2019).

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