前言自从二十世纪初澳大利亚Broken Hill将浮选用于工业生产以来,浮选方法已发展成为选矿工程师们可采用的唯一最重要的矿物分离方法。浮选的统计数据,不论是在处理吨位的增长方面,还是在成功的分离矿石种类方面,都给人留下深刻的印象。由于矿石品位不断下降和许多现有的矿石是细粒嵌布的矿物(其中许多呈高度氧化状态)混合物,选矿科学工作者和工程师现在面临着改进和改变常规浮选技术的问题,以便有效地分选这些较难选的矿石类型。浮选方法并不是通过大量基础研究产生的,而是和许多其它处理原矿的方法一样,在长期地应用试验方法中发展起来的。因此,长期以来在这一领域中大多数基础研究所关切的问题是解释现有的方法效果为什么这么好。我们现在正处于这样一个阶段,浮选要 Introduction Since the early 1900s, flotation in Broken Hill, Australia, has been used in industrial production, the flotation process has evolved into the single most important mineral separation process available to beneficiation engineers. Flotation statistics, whether in dealing with the growth of tonnage, or in the successful separation of ore types are impressive. Due to the declining ore grade and many of the existing ores being a mixture of finely divided minerals, many of which are highly oxidized, beneficiation scientists and engineers are now faced with the problem of improving and changing conventional flotation technologies in order to effectively Sort these more difficult to pick the type of ore. Flotation methods are not generated through extensive basic research, but are developed in long-term application of test methods, just as many other methods of processing raw ore. Therefore, the concern of most basic research in this area for a long time is to explain why the effects of the existing method are so good. We are now at a stage where flotation is needed