Abstract: Ionic liquids have attracted considerable interest in academical and industrial circles due to their unique properties and have already become the frontier and hot topic of worldwide science and technology in recent years. They have demonstrated broad potential applications and prospect in many domains. This article provides an overview of industrial application of ionic liquids in China and the rest of the world in recent 20 years. Some typical industrial applications of ionic liquids to chemical processes，electrochemistry，performance additives，gas processing，analytical chemistry and energy field are elaborated. Finally，the authors’ opinions concerning the prospect of ionic liquids commercial application are presented，and several existing problems of ionic liquids before large-scale application，such as greenness，basic theory and cost control are analyzed.

Key words: ionic liquid, chemical engineering, electrochemistry, gas processing, separation and analysis

摘要： 离子液体以其特有的性质广受学术界和工业界关注，业已发展成为国际科技的前沿和热点，在诸多领域展示了广阔的应用潜力和前景。本文综述了近二十年来国内外离子液体工业应用进展情况，并对离子液体在化学工程、电化学、高性能添加剂、气体处理、分离分析以及能源领域中的工业化应用现状做了重点介绍。最后对离子液体工业化应用的前景做了展望，并分析了离子液体在实现大规模应用之前应重点解决绿色化、基础理论和成本控制问题。

关键词: 离子液体, 化学工程, 电化学, 气体处理, 分离分析