期刊
DESALINATION
卷 376, 期 -, 页码 35-40出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2015.08.013
关键词
Lithium extraction; Membrane electrolysis; Salt lake brine; LiFePO4/FePO4 electrode
资金
- National Natural Science Foundation of China [U1407137]
Extraction of lithium from brine is becoming a focus of importance worldwide. Lithium was extracted from brine by membrane electrolysis in this paper, and the influences of operating parameters on Li+ exchange capacity and stability of electrode are investigated. Various parameters including initial lithium concentration of anolyte, anode-cathode distance, electrolyte temperature, surface density of active substrate and electrolysis time are optimized. Under the optimal conditions, the electrode exhibits a remarkable Li+ exchange capacity of 38.9 mg/g and the pH value of anolyte is less than 8. The results are beneficial for the extraction of lithium from brine by membrane electrolysis. (C) 2015 Elsevier B.V. All rights reserved.
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