摘要：Exploring a facile method to recover Li+ is crucial for liquid-liquid extraction from high Mg/Li ratio brine for energy conversion and storage. A simple and effective approach herein that involves the lithium recovery from high Mg/Li ratio brine at a controlled temperature is proposed. Liquid-liquid extraction of Li+ from high Mg/Li ratio brine was carried out using tributyl phosphate (TBP) diluted in temperature-responsive ionic liquid as the extraction organic phase. The introduction of this ionic liquid allows for the solid-liquid conversion of the extraction phase by adjusting the temperature, and then achieves effective phase separation after liquid-liquid extraction. The parameters such as pH value, the dosage of IL, and phase ratio were optimized by experiments to achieve more than 80% of lithium recovery from a high Mg/Li ratio solution. The loaded organic phase was regenerated by HCl stripping, and the stripped organic phase can be recovered with no crud or emulsification during the process. In this work, a novel and green method was developed for lithium selectivity recovery by using a switchable temperature-responsive TBP-IL system. ? 2023 Elsevier B.V.

ISSN号：1383-5866

卷、期、页：卷322

发表日期：2023-10-01

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Separation and Purification Technology

参与作者：Li, Xiaowei,Chen, Wang,Chen, Linlin,Luo, Guiling,Sun, Jing,Huang, Yuhong,Bizuneh, Kaleab

第一作者：巢艳红,朱文帅

论文类型：期刊论文

论文概要：Li, Xiaowei,Chen, Wang,Chen, Linlin,Luo, Guiling,Sun, Jing,Huang, Yuhong,Bizuneh, Kaleab,巢艳红,朱文帅，Temperature-responsive liquid-liquid extraction of Li+ from high Mg/Li ratio brine，Separation and Purification Technology，2023，卷322

论文题目：Temperature-responsive liquid-liquid extraction of Li+ from high Mg/Li ratio brine