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波兰硫化铜矿石的浮选尾矿超过了原矿重量的90%。尾矿中主要含石英,白云石、粘土矿物,痕量硫化物和一些次要矿物。尾矿中几乎所有的矿物都解离得很好,因此,可预期尾矿的任何分选过程均很便宜。在该研究工作中,给出了用分级和重选法来选别浮选尾矿的研究结果。试验结果表明,由于采用水力旋流器对浮选尾矿进行分级,粗粒级可作为重选的适宜给料,为地下矿山提供回填料。还可以作为分选稀有元素的重矿物。已发现用重选分选的重矿物含有大量的稀有元素,如锆、钛、银、稀土金属以及铀。重选的轻组分中含有脱泥良好的石英颗粒,符合用于地下矿山结构支承的水力充填料的产格要求。选矿工艺的成本评估表明,方案实施的投资在2～4年内收回。
Polish copper sulphide flotation tailings exceed the weight of the ore by 90%. Tailings contain mainly quartz, dolomite, clay minerals, trace sulfides and some minor minerals. Almost all of the minerals in the tailings dissociate very well, so any sort of tailing can be expected to be cheap. In this work, the results of the research on the classification of flotation tailings by grading and reelection are given. The test results show that due to the hydrocyclone flotation tailings grading, coarse-grained level can be used as a suitable re-election feed, to provide backfill for underground mines. It is also used as a heavy mineral to separate rare elements. It has been found that heavy minerals sorted by gravity contain large quantities of rare metals such as zirconium, titanium, silver, rare earth metals, and uranium. The re-selected light fraction contains finely deslimed quartz particles that meet the production requirements for hydraulic packings for subsurface mine structural support. The cost assessment of the beneficiation process shows that the investment in program implementation is recovered within 2 to 4 years.