Electrochemically switched ion exchange device with serpentine flow field for selective extraction of lithium

被引：0

作者：

Zhang Z. ^{[1
]}

He Y. ^{[2
]}

Sun H. ^{[2
]}

Zhang R. ^{[2
]}

Sun Z. ^{[2
]}

Chen J. ^{[2
]}

Zheng Y. ^{[1
]}

Du X. ^{[1
]}

Hao X. ^{[1
]}

机构：

[1] College of Chemical Engineering and Technology, Taiyuan University of Technology, Shanxi, Taiyuan

[2] Academia Sinica, Qinghai Salt Lake Industry Group Company Limited, Geermu, Qinghai

来源：

Huagong Xuebao/CIESC Journal | 2023年 / 74卷 / 05期

关键词：

electrochemistry; lithium extraction; salt lake brine; selectivity; separation; serpentine flow field;

D O I：

10.11949/0438-1157.20230303

中图分类号：

学科分类号：

摘要：

An electrochemically switched ion exchange (ESIX) device with single-channel serpentine flow field was assembled by alternately and symmetrically stacking perforated LiMn2O4-based and carbon black (C)-based film coated electrodes, and employed for selective extraction of lithium from simulated brine with high Mg/Li ratio (about 500). Based on this bottom-up serpentine flow field, increasing the number of chambers in the membrane module can enable more lithium ions to be trapped in the simulated brine. Compared with the conventional driving mode of constant voltage, the collaborative driving mode of constant current-constant voltage could effectively improve the lithium extraction performance of the ESIX device. The extraction efficiency of Li+reached as high as 97.6% in 120 min with a coupled driving mode of 0.8 mA·cm-2-1 V. In addition, X-ray diffraction (XRD) test demonstrated that most of the adsorbed Mg2+ could be removed by rinsing the surface of the film coated electrodes. Therefore, such a novel ESIX device has potential industrial applications for selective separation of lithium from high Mg/Li ratio salt lake brines. © 2023 Chemical Industry Press. All rights reserved.

引用

页码：2022 / 2033

页数：11

共 33 条

[11] Li Y, Wang M, Zhao Y J, Et al., Study on separation of magnesium and lithium from salt lake brine with high magnesium-to-lithium mass ratio by nanofiltration membrane, CIESC Journal, 72, 6, pp. 3130-3139, (2021)
[12] Bai C, Guo M, Zhang H F, Et al., The research progress of extracting lithium from brine by lithium ion sieve, Chemical Industry and Engineering Progress, 36, 3, pp. 802-809, (2017)
[13] Zhao B, Qian Z Q, Qiao Y J, Et al., The Li(H2O)n dehydration behavior influences the Li+ ion adsorption on H4Ti5O12 with different facets exposed, Chemical Engineering Journal, 451, (2023)
[14] Guo Z Y, Ji Z Y, Chen H Y, Et al., Progress of electrode materials and electrode systems in electrochemical lithium extraction process, Chemical Industry and Engineering Progress, 39, 6, pp. 2294-2303, (2020)
[15] Li Y, Wang M, Zhao Y J, Et al., Preparation and properties of polyamide nanofiltration membrane for lithium extraction from salt lake brine, Journal of Salt Lake Research, 31, 1, pp. 1-10, (2023)
[16] Abdulazeez I, Baig N, Salhi B, Et al., Electrochemical behavior of novel electroactive LaTi4Mn3O12/polyaniline composite for Li+-ion recovery from brine with high selectivity, Separation and Purification Technology, 309, (2023)
[17] Kanoh H, Ooi K, Miyai Y, Et al., Electrochemical recovery of lithium ions in the aqueous phase, Separation Science and Technology, 28, pp. 643-651, (1993)
[18] Marchini F, Williams F J, Calvo E J., Sustainable selective extraction of lithium chloride from natural brine using a Li1-xMn2O4 ion pump, Journal of the Electrochemical Society, 165, 14, pp. A3292-A3298, (2018)
[19] Yin R X, He L H, Tang Z Y, Et al., Preparation of porous LiFePO4 electrode of electrochemical de-intercalation/intercalation method for lithium extraction from brine, Conservation and Utilization of Mineral Resources, 41, 3, pp. 155-160, (2021)
[20] Liu D F, Xu W H, Xiong J C, Et al., Electrochemical system with LiMn2O4 porous electrode for lithium recovery and its kinetics, Separation and Purification Technology, 270, (2021)

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