前言自浮选在矿业界确立为主要的选矿工艺以来,历经约70年左右,但近年来却愈显示出它的重要性。其原因是,随着世界性的资源枯竭,选矿处理的对象矿物品位越来越低,而且复杂,因而必须处理更细颗粒的矿石;再是要求选择性更强的分选方法。矿石一旦 Introduction Since flotation has been established as a major beneficiation process in the mining industry for about 70 years, it has become more and more important in recent years. The reason for this is that, with the depletion of resources worldwide, the beneficiaries of mineral processing are becoming lower and more complex in mineralogy, and therefore finer-grained ores have to be dealt with; then the more selective sorting methods are required. Once the ore