钪及其化合物性质优异，在宇航材料、电子信息、核技术等尖端行业应用广泛，是重要的战略性资源。钪在地壳中的分布极为分散，独立的钪矿物很少，属于稀贵稀土元素。本工作介绍了目前全球钪资源分布情况及市场供需状况，重点综述了从不同含钪物料及二次渣中提取钪的技术研究，着重关注溶剂萃取在提取钪工艺中的应用，并分析了不同萃取体系的萃钪机制，认为反萃率低、乳化和三相问题突出是当前提钪体系普遍存在的难点，因此需要不断开发新型高效萃取剂，发展清洁绿色提取技术，更好地推进我国钪工业的发展。

As one of rare and precious rare earth elements, scandium is extremely dispersed in the crust and often associated with other minerals. With excellent properties of scandium and its compounds, scandium is widely used in aerospace materials, electronic information, nuclear technology and other industries. It is mainly used in aluminum?scandium alloy material, solid oxide fuel cell (SOFC), scandium sodium halogen (HID) lamp, ultralight shape memory magnesium?scandium alloy and fast storage. The technology of scandium recovery is complicated and the cost is high. Scandium is abundant in China, which accounts for 1/3 of the world. The research of scandium extraction and deep processing in China is still weak, and there is a big gap with the world advanced level. This work summarized the resource distribution, supply and demand of scandium, and introduced the technologies and examples of scandium extraction from different scandium containing materials, such as titanium dioxide waste acid, red mud, zirconium smelting materials, tungsten slag, focused on the application of solvent extraction in extracting scandium process, and analyzed the different extraction system of extraction mechanism of scandium, found that low extraction rate, emulsification and three phase problems were the common difficulties of scandium system. In addition, it was proposed that China should lead the designated product standards, focus on the study of methods to improve the recovery of scandium, improve the comprehensive extraction of scandium and symbiotic elements, and constantly develop green extraction technology.