Optimization Research on Synthesis Conditions of Adsorption Materials for Lithium Extraction from Seawater and Brine

Abstract

Lithium extraction from seawater and brine is an important approach to solving the short supply of lithium resource. Development of ion-sieve adsorption materials is the key of realizing industrial application of lithium extraction from seawater and brine with high ratio of magnesium to lithium. Although the synthetic process is complicated, with plenty of influencing factors, levels, and large amounts of data, this research successfully optimized the synthesis conditions by orthogonal experiment and statistical analysis. The achievements will lay solid foundation for the development of lithium adsorption materials.

Insights into adsorbent materials for lithium extraction by capacitive deionization: reconceptualizing the role of materials informatics

“…Moreover, driven by an electric field, specific adsorbents have demonstrated a robust capacity for metal ion adsorption and offer a straightforward extraction process. 16 The CDI process can be analogized to the charging and discharging process of a battery/supercapacitor, where a certain voltage (typically <1.23 V to prevent hydrolysis reactions) is applied between the opposite electrodes. During the charging process, lithium ions in the solution are adsorbed within the porous electrode.…”