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电场强化液-液萃取是世界近年来研究和开发的热点,在萃取设备能量转化模式上提出电能不经机械能直接转化为液-液分散能的新概念。对于湿法冶金溶剂萃取过程,如铜或稀土等的分离可望在提高设备效率,降低溶剂装量,减少相夹带等关键技术方面取得突破性进展。讨论电场强化液-液萃取的进展和工业应用前景。对于电场强化液-液相分离、诱发液-液分散、电流体力学现象和强化传质、乳化液膜萃取过程电场破乳和电场萃取设备原型等近年来研究的发展趋向和关键技术作了评论。
Electric field enhancement liquid-liquid extraction is a hot spot in recent years in the world. In the energy conversion mode of extraction equipment, a new concept of direct conversion of electric energy into liquid-liquid dispersion energy without mechanical energy is proposed. For the hydrometallurgical solvent extraction process, such as copper or rare earth separation is expected to make breakthrough progress in key technologies such as increasing equipment efficiency, reducing solvent loading, and reducing phase entrainment. Discuss the progress of field enhanced liquid-liquid extraction and industrial application prospect. In recent years, the development trends and key technologies of electric field enhanced liquid-liquid phase separation, induced liquid-liquid dispersion, electromechanical phenomena and enhanced mass transfer, electric field demulsification in emulsion liquid membrane extraction and prototype of electric field extraction equipment were reviewed .