本文简要地综述了单宁酸和栲胶在提锗中的研究和应用,其中包括沉淀分离法和浮选分离法。用单宁沉淀分离锗是一种传统的方法,其流程简短,操作方便,工艺成熟,锗精矿品位高,广为锗生产厂所采用.单宁的用量,溶液含锗量、锌离子浓度、三价铁离子和溶液的酸度均对锗的提取率产生明显的影响。 This article briefly reviewed the research and application of tannin and tannin in germanium extraction, including precipitation and flotation separation. The tannin precipitation separation of germanium is a traditional method, the process is simple, easy to operate, the process is mature, germanium concentrate high grade, widely used in germanium production plant. The amount of tannin, germanium content of the solution, zinc ion concentration , Ferric ions and the acidity of the solution both have a significant impact on the extraction rate of germanium.