根据难选矿石较有价组分的物理—化学性质的理论和试验研究结果,研究了几种工艺方法,含黄铁矿的多金属原料的热磁分选;含铜、钼矿石及中间产品的精选;有色金属氧化矿和混合矿的水热硫化法和电化学硫化法;选择性脱硅以及疏水矿物的球团聚(造球)等方法。这些方法以矿物的定向转变为基础,形成具有性质明显不同的人为新物相,利用这些性质就可显著地提高常规分选方法的效率。与传统工艺相比,本文所研究的流程方案的目的在于把难选原料的主要组分分选为合格产品,从而提供几乎是无尾矿的工艺方法。 According to the physical and chemical properties of refractory ore more valuable components of the theoretical and experimental research results, the study of several processes, thermodynamic and magnetic separation of pyrite containing polymetallic raw materials; copper, molybdenum ore and intermediate products Of the selection; non-ferrous metal oxide ore and mixed ore hydrothermal vulcanization and electrochemical vulcanization; selective desilication and hydrophobic minerals pellet agglomeration (pelletizing) and other methods. These methods, based on the directional transformation of minerals, form man-made new phases with significantly different properties, and utilizing these properties can significantly improve the efficiency of conventional sorting methods. Compared with the traditional process, the flow scheme studied in this article is aimed at sorting the main components of the refractory raw materials into qualified products, so as to provide almost tailings-free process.