Further investigation into lithium recovery from salt lake brines with different feed characteristics by electrodialysis

被引:152
作者
Nie, Xiao-Yao [1 ]
Sun, Shu-Ying [1 ]
Song, Xingfu [1 ]
Yu, Jian-Guo [1 ]
机构
[1] East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake R, Shanghai 200237, Peoples R China
关键词
Electrodialysis; Brine; Lithium recovery; High salinity system; ION-EXCHANGE MEMBRANES; DIVALENT IONS; EXTRACTION EQUILIBRIA; TRIBUTYL-PHOSPHATE; SEPARATION; MONOVALENT; NANOFILTRATION; MAGNESIUM; ANION; FRACTIONATION;
D O I
10.1016/j.memsci.2017.02.020
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Although lithium resources are abundant in the salt lakes located in West China, the majority of these resources have a high Mg/Li ratio, which is problematic because traditional precipitation methods are unsuitable for lithium recovery from this type of brine. In our previous work, constant-current electrodialysis (ED) was applied to comprehensively investigate the effects of operating conditions on the Li+/Mg2+ separation, however, the experimental study considering the feed characteristic diversity and the theoretical analysis of the ionic transfer process considering the feed composition complexity were remained to be perfected. This work focused on resolving the remained questions therein. Initially, we determined the ion-exchange isotherm of the CSO membrane. The selective affinity towards divalent cation was validated, which laid the foundation for the development of the electric double layer (EDL). Then, we investigated the effects of applied voltage on the separation performance and optimized the power mode. The constant-voltage was verified to be a superior power mode compared to the constant-current applied in our previous work. Thereafter, the feed solutions characterized by different Mg/Li ratios, Na/Li ratios, and sulfate concentrations were treated by constant voltage ED, wherein the partitioning principle was further explained via a thermodynamic analysis of the aqueous species distribution of ions. The results showed that in a high-salinity aqueous system, mass transfer was significantly affected by the complexity of the ions' existing forms, which notably determined the steric hindrance and charge effect. As a specific transfer phenomenon, we found that sulfate ions provided large benefit to lithium recovery in the salt lake brine system. A natural brine experiment also showed that lithium recovery can be effectively achieved by ED. These observations indicated that ED has a wide adaptability for lithium recovery from brines with different feed characteristics.
引用
收藏
页码:185 / 191
页数:7
相关论文
共 31 条
[21]   Lithium availability and future production outlooks [J].
Vikstrom, Hanna ;
Davidsson, Simon ;
Hook, Mikael .
APPLIED ENERGY, 2013, 110 :252-266
[22]   Preliminary study on recovering lithium chloride from lithium-containing waters by nanofiltration [J].
Wen, Xianming ;
Ma, Peihua ;
Chaoliang, Zhu ;
He, Qiong ;
Deng, Xiaochuan .
SEPARATION AND PURIFICATION TECHNOLOGY, 2006, 49 (03) :230-236
[23]   Extraction of lithium from salt lake brine containing borate anion and high concentration of magnesium [J].
Xiang, Wei ;
Liang, Shengke ;
Zhou, Zhiyong ;
Qin, Wei ;
Fei, Weiyang .
HYDROMETALLURGY, 2016, 166 :9-15
[24]   Synthesis and Adsorption Properties of Li1.6Mn1.6O4 Spinel [J].
Xiao, Jia-Li ;
Sun, Shu-Ying ;
Wang, Jin ;
Li, Ping ;
Yu, Jian-Guo .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2013, 52 (34) :11967-11973
[25]   Ion exchange membranes: State of their development and perspective [J].
Xu, TW .
JOURNAL OF MEMBRANE SCIENCE, 2005, 263 (1-2) :1-29
[26]   Using the cumulative availability curve to assess the threat of mineral depletion: The case of lithium [J].
Yaksic, Andres ;
Tilton, John E. .
RESOURCES POLICY, 2009, 34 (04) :185-194
[27]  
Yang G, 2011, CHINESE J CHEM ENG, V19, P586
[28]   Selectrodialysis: Fractionation of divalent ions from monovalent ions in a novel electrodialysis stack [J].
Zhang, Yang ;
Paepen, Simon ;
Pinoy, Luc ;
Meesschaert, Boudewijn ;
Van der Bruggen, Bart .
SEPARATION AND PURIFICATION TECHNOLOGY, 2012, 88 :191-201
[29]   Separation of nutrient ions and organic compounds from salts in RO concentrates by standard and monovalent selective ion-exchange membranes used in electrodialysis [J].
Zhang, Yang ;
Van der Bruggen, Bart ;
Pinoy, Luc ;
Meesschaert, Boudewijn .
JOURNAL OF MEMBRANE SCIENCE, 2009, 332 (1-2) :104-112
[30]   Extraction Equilibria of Lithium with Tributyl Phosphate in Kerosene and FeCl3 [J].
Zhou, Zhiyong ;
Qin, Wei ;
Liu, Yang ;
Fei, Weiyang .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2012, 57 (01) :82-86