提高有色金属和其他有色金属矿物的选矿回收率是国民经济的重要任务。为了揭示降低最终尾矿中金属损失的特性和考查降低最终尾矿中金属损失的方向,已经对选矿一厂在1978年一季度期间的最终尾矿平均试样的物质组成进行了研究。列于表1的选矿厂二号系统最终尾矿中各粒级的金属分布指出,矿物的主要损失与 It is an important task of the national economy to increase the beneficiation recovery rate of non-ferrous metals and other non-ferrous minerals. In order to uncover the characteristics of reducing the metal losses in the final tailings and to examine the direction of reducing the metal losses in the final tailings, the material composition of the average final tailings samples of the first beneficiation plant during the first quarter of 1978 has been studied. The metal distribution at each particle level in the final tailings of the No. 2 system of the concentrator listed in Table 1 indicates that the major loss of minerals is related to