历来对矿物浮选的研究者重于影响浮选的诸多因素方面．有些因素与矿物的种类、矿物的解高度（不论如何定义）、溶液的化学性质和浮选药剂有关．这些因素之间相互作用的复杂性常使人怀疑实验室或半工业试验得到的最终品位／回收率结果是否为某一特定品位下的最高回收率．出现这种状况的原因就是，在此之前对矿石的可浮性还未建立一种通用的技术。本文叙述的是用于有别于煤的金属矿物的“树枝状”浮选方法的进一步发展，着重介绍其在铁矿石方面的应用．选择了介于简单的选煤和复杂的选硫化矿物之间的中等复杂程度的选氧化物系统，以阐述原理并展开概念．“树枝状”浮选法包括逐次泡沫产品的分段浮选以及为除掉杂质而进行的再浮选。因此，就可浮选性而言，它体现为一种平衡方法而不是动力方法．为提高品位，将各种产品和尾矿有序排列，可得到品位／回收率累积曲线，用同种矿石单独进行批量实验或工厂生产的结果可与该曲线比较．在本文介绍的研究工作中，对不同磨矿粒度的碧玉铁质岩铁矿做了试验，以确定在一组给定药剂条件下的最佳浮选品位-回收率．工艺分选特性用一个系统最佳测定，该系统含有象“中矿”那们（就所述的工艺而言）的颗粒．为此，未选择典型系统而选择了一种天然矿石，以便更接近工厂的实际 Historically, researchers of mineral flotation have focused more on the many factors that affect flotation. Some factors are related to the type of mineral, the height of the mineral solution (however defined), the chemical nature of the solution and the flotation reagent. The complexity of the interaction between these factors often raises the question of whether the final grade / recovery result from a laboratory or semi-industrial test is the highest recovery at a particular grade. The reason for this condition is that until now no general technique has been established for floatability of ores. This article describes the further development of “dendritic” flotation methods for metal minerals that are distinct from coal, highlighting their use in iron ore. A moderately complex SOE system was chosen between simple coal preparation and complex sulfide minerals to explain the concepts and concepts. “Dendritic” flotation methods include segmented flotation of successive foam products and re-flotation to remove impurities. Therefore, in terms of flotability, it manifests itself as a balancing approach rather than a motivational one. Order to improve the quality of various products and tailings arranged in order to obtain the cumulative grade / recovery curve, with the same ore batch experiments alone or factory production results can be compared with the curve. In the work presented in this paper, we tested jasper iron ore with different grinding particle sizes to determine the best flotation grade - recovery rate for a given set of chemicals. The process sorting characteristics are best determined with a system that contains particles like those for the “middle mine” (for the process described). For this reason, a natural system was chosen instead of the typical system in order to be closer to the actual plant