钒页岩现有强酸提钒工艺不具选择性，大量杂质离子在浸出过程中随钒溶出，导致酸浸液净化富集工序存在流程长、药剂耗量大、杂质离子与钒分离效果不理想等问题。本项目将离子液体三辛基甲基氯化铵（TOMAC）代替传统萃取剂作为传质载体引入支撑液膜萃取体系，以提高支撑液膜稳定性和分离选择性。首先，优化离子液体支撑液膜的制备工艺与萃取条件，分别在实际复杂溶液与纯溶液体系明确该体系钒与杂质离子的分离机制；其次，进行动力学与热力学进行研究，对相关动力学与热力学参数进行测定；最后，基于密度泛函理论，选择Gaussian软件对该萃取体系进行量子化学计算，结合相关检测及表征，在分子水平上阐释钒的萃取机理以及与杂质离子的分离本质，为新的离子液体改性、合成以及在净化富集领域的应用提供理论基础。

The strong acid leaching of vanadium extraction process is not selective, resulting in a large number of impurity ions dissolve out with vanadium, leading to a long process, pharmaceutical consumption, and poor separation in purification enrichment process. Aiming to enhance the stability and separation performance of liquid membrane, ionic liquid methyl trioctyl ammonium chloride (TOMAC) is employed as transport carrier to the selectiveliquid membrane separation technology. First, the preparation and extraction process will be studied, and the separation mechanism is analyzed in real acid leaching solution and pure vanadium solution. Then, establish the dynamic model to describe the migration process of vanadium and calculate the thermodynamic parameters related. Finally, Gaussian software is selected to calculate the quantum chemistryparameters.Combined with correlation detection and characterization, elucidating the vanadium extraction and separation mechanism，andproviding the theoretical basis for modification, synthesis and the application of separating metals of new kinds of ionic liquids.