| Lithium recovery using electrodialysis: Recent developed processes |
| کد مقاله : 1111-17THECSI |
| نویسندگان |
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آناهیتا کاظمی کیا1، حمیدرضا مرتهب *2، مهسا باغبان صالحی1، علی اصغر نوزعیم3، علی اکبر عباسی3، مهیار مومنی1 1پژوهشگاه شیمی و مهندسی شیمی ایران 2هیئت علمی 3دانشگاه علم و صنعت |
| چکیده مقاله |
| Lithium plays a crucial role in the evolution of transport and energy systems owing to the increasing demands for Lithium-ion batteries (LIBs). LIBs currently make about 40% share of the world battery market and this value is estimated to increase in the upcoming years. Thus, the importance of lithium in the current economy is undeniable. Out of the mineral and aqueous resources, many researches have been performed on exploitation of lithium from brines over the past years. In recent years, progresses have been made in a variety of lithium recovery methods based on precipitation, ion-exchange, solvent extraction, membranes, and electrochemistry methods. Electrochemical technologies have received considerable attention owing to their high selectivity towards Li, limited waste production, and low environmental footprint. Among the available electrochemical processes, electrodialysis (ED)-based methods are promising due to their easy-scale-up and time-saving nature. In the current study, five lithium separation ED systems including selective electrodialysis (SED), liquid membrane electrodialysis (LMED), bipolar membrane electrodialysis (BMED), superionic conductor electrodialysis (SCED), and ionic liquid electrodialysis (ILED) are briefly investigated. In conventional ED systems, under the driving force of an electric field, cation migrates towards the cathode by passing through the negatively charged cation exchange membranes (CEMs) whereas the anion migrates to an anode by passing through positively charged anion exchange membranes (AEM) resulting in different concentrations in the diluted and concentrated compartments. However, SED replaces the conventional ion exchange membranes with monovalent ion exchange membranes to improve selectivity towards Li+. |
| کلیدواژه ها |
| Electrodialysis, Lithium, Brine, Membrane ion exchange. |
| وضعیت: چکیده برای ارائه شفاهی پذیرفته شده است |