钽的需要量日益增长,为了保证原料的供应,除了象锡渣这样的二次原料外,还不得不处理原生贫矿。文章阐述了中华人民共和国-贫钽矿的选矿研究结果。根据实验室和半工业试验结果提出了选矿工艺流程,在此流程中,考虑到原矿品位低,采用了处理能力和分选效率高,生产费用低的选矿设备,根据这一流程可选得 Ta_2O_5为2%、Nb_2O_5约为2%和 SnO_2大干20%的粗精矿,钽的回收率在60%以上。本研究工作是由西德联邦经济部赞助的。 Tantalum needs growing, in order to ensure the supply of raw materials, in addition to the secondary raw materials like tin dross, but also have to deal with the native lean ore. The article elaborated the People’s Republic of China - depleted tantalum beneficiation results of the study. Based on laboratory and semi-industrial test results, a beneficiation process is proposed. In this process, taking into account the low ore grade, a beneficiation plant with high processing capacity and high separation efficiency and low production cost is adopted. According to this process, Ta 2 O 5 Is 2%, Nb 2 O 5 is about 2% and SnO 2 is about 20% of the crude concentrate, and the recovery rate of tantalum is over 60%. The research work is sponsored by the Federal Ministry of Economic Affairs.