Numerical Simulation of Continuous Extraction of Li from High Mg/Li Ratio Brines Based on Free Flow Ion Concentration Polarization Microfluidic System

Overview

Journal Membranes (Basel)

Date 2021 Sep 26

PMID 34564514

Citations 1

Authors

Dongxiang Zhang

Xianglei Zhang

Leilei Xing

Zirui Li

Affiliations

Soon will be listed here.

Abstract

Ion concentration polarization (ICP) is a promising mechanism for concentrating and/or separating charged molecules. This work simulates the extraction of Li ions in a diluted high Mg/Li ratio salt lake brines based on free flow ICP focusing (FF-ICPF). The model solution of diluted brine continuously flows through the system with Li slightly concentrated and Mg significantly removed by ICP driven by external pressure and perpendicular electric field. In a typical case, our results showed that this system could focus Li concentration by ~1.28 times while decreasing the Mg/Li ratio by about 85% (from 40 to 5.85). Although Li and Mg ions are not separated as an end product, which is preferably required by the lithium industry, this method is capable of decreasing the Mg/Li ratio significantly and has great potential as a preprocessing technology for lithium extraction from salt lake brines.

Citing Articles

Numerical Modeling in Membrane Processes.

Deon S, Dutournie P Membranes (Basel). 2022; 12(11).

PMID: 36363585 PMC: 9697097. DOI: 10.3390/membranes12111030.

References

Flexer V, Baspineiro C, Galli C . Lithium recovery from brines: A vital raw material for green energies with a potential environmental impact in its mining and processing. Sci Total Environ. 2018; 639:1188-1204. DOI: 10.1016/j.scitotenv.2018.05.223. View

Kim S, Song Y, Han J . Nanofluidic concentration devices for biomolecules utilizing ion concentration polarization: theory, fabrication, and applications. Chem Soc Rev. 2010; 39(3):912-22. PMC: 2929016. DOI: 10.1039/b822556g. View

Ouyang W, Li Z, Han J . Pressure-Modulated Selective Electrokinetic Trapping for Direct Enrichment, Purification, and Detection of Nucleic Acids in Human Serum. Anal Chem. 2018; 90(19):11366-11375. PMC: 6785752. DOI: 10.1021/acs.analchem.8b02330. View

Gong L, Ouyang W, Li Z, Han J . Force fields of charged particles in micro-nanofluidic preconcentration systems. AIP Adv. 2018; 7(12):125020. PMC: 5739909. DOI: 10.1063/1.5008365. View

Gong L, Ouyang W, Li Z, Han J . Direct numerical simulation of continuous lithium extraction from high Mg/Li ratio brines using microfluidic channels with ion concentration polarization. J Memb Sci. 2018; 556:34-41. PMC: 6181454. DOI: 10.1016/j.memsci.2018.03.078. View

Mani A, Zangle T, Santiago J . On the propagation of concentration polarization from microchannel-nanochannel interfaces. Part I: Analytical model and characteristic analysis. Langmuir. 2009; 25(6):3898-908. PMC: 4816500. DOI: 10.1021/la803317p. View

Phan D, Jin L, Wustoni S, Chen C . Buffer-free integrative nanofluidic device for real-time continuous flow bioassays by ion concentration polarization. Lab Chip. 2018; 18(4):574-584. DOI: 10.1039/c7lc01066d. View

Karatay E, Druzgalski C, Mani A . Simulation of chaotic electrokinetic transport: performance of commercial software versus custom-built direct numerical simulation codes. J Colloid Interface Sci. 2015; 446:67-76. DOI: 10.1016/j.jcis.2014.12.081. View

Wang Y, Stevens A, Han J . Million-fold preconcentration of proteins and peptides by nanofluidic filter. Anal Chem. 2005; 77(14):4293-9. DOI: 10.1021/ac050321z. View

10.

Park S, Kwak R . Microscale electrodeionization: In situ concentration profiling and flow visualization. Water Res. 2019; 170:115310. DOI: 10.1016/j.watres.2019.115310. View

11.

Papadimitriou V, Segerink L, Eijkel J . Free Flow Ion Concentration Polarization Focusing (FF-ICPF). Anal Chem. 2020; 92(7):4866-4874. PMC: 7143306. DOI: 10.1021/acs.analchem.9b04526. View

12.

Kim S, Ko S, Kwak R, Posner J, Kang K, Han J . Multi-vortical flow inducing electrokinetic instability in ion concentration polarization layer. Nanoscale. 2012; 4(23):7406-10. DOI: 10.1039/c2nr32467a. View

13.

Nanthasurasak P, Cabot J, See H, Guijt R, Breadmore M . Electrophoretic separations on paper: Past, present, and future-A review. Anal Chim Acta. 2017; 985:7-23. DOI: 10.1016/j.aca.2017.06.015. View

14.

Hlushkou D, Knust K, Crooks R, Tallarek U . Numerical simulation of electrochemical desalination. J Phys Condens Matter. 2016; 28(19):194001. DOI: 10.1088/0953-8984/28/19/194001. View

15.

Kim S, Li L, Han J . Amplified electrokinetic response by concentration polarization near nanofluidic channel. Langmuir. 2009; 25(13):7759-65. PMC: 2706657. DOI: 10.1021/la900332v. View

16.

de Valenca J, Jogi M, Wagterveld R, Karatay E, Wood J, Lammertink R . Confined Electroconvective Vortices at Structured Ion Exchange Membranes. Langmuir. 2018; 34(7):2455-2463. PMC: 5822219. DOI: 10.1021/acs.langmuir.7b04135. View

17.

Yoon J, Do V, Pham V, Han J . Return flow ion concentration polarization desalination: A new way to enhance electromembrane desalination. Water Res. 2019; 159:501-510. DOI: 10.1016/j.watres.2019.05.042. View

18.

Rubinstein I, Zaltzman B . Equilibrium electroconvective instability. Phys Rev Lett. 2015; 114(11):114502. DOI: 10.1103/PhysRevLett.114.114502. View

19.

Ouyang W, Ye X, Li Z, Han J . Deciphering ion concentration polarization-based electrokinetic molecular concentration at the micro-nanofluidic interface: theoretical limits and scaling laws. Nanoscale. 2018; 10(32):15187-15194. PMC: 6637655. DOI: 10.1039/c8nr02170h. View

20.

Kim S, Ko S, Kang K, Han J . Direct seawater desalination by ion concentration polarization. Nat Nanotechnol. 2010; 5(4):297-301. DOI: 10.1038/nnano.2010.34. View