前言矿石的经济价值,不仅有赖于其有价成份的价值,同时也与这些有价成份的产状——存在状态、矿石的结构及构造等——有关。因为这些有价成份在矿石中的产状决定了选矿工艺的繁简难易、可能回收的程度以及选矿费用等等。关于存在状态方面例如,有色金属的硫化矿物较氧化矿物易于浮选,且一般回收率较高。例如,黄铜矿矿石中(CuFe Foreword The economic value of ores depends not only on the value of their valuable components, but also on the shape of those valuable components - the state of existence, the structure and structure of ores, and so on. Because the production of these valuable ingredients in the ore determines the ease and complexity of beneficiation process, the degree of possible recovery and dressing costs and so on. As regards the state of existence, for example, sulphide minerals of non-ferrous metals tend to be more flotation than oxide minerals and generally have higher recovery rates. For example, chalcopyrite ore (CuFe