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目前,许多选矿厂积累了废弃尾矿再处理以提高有价组分回收率的经验。吉申斯克矿床矿石的选矿厂废弃尾矿中所含的铜、锌和贵金属,换算成标准铅,其品位仅比工业矿石的边界品位低10—20%。此外,还应看到,选矿厂的尾矿已经过采矿、运输、碎矿和磨矿等作业,因此对于尾矿再处理来说,其欲回收金属的最低工业品位无疑比矿石的边界品位低。
At present, many concentrators have accumulated the experience of reprocessing waste tailings to increase the recovery of valuable components. The copper, zinc and precious metals contained in the waste tailing from the ore dressing plant at Jishensco are converted into standard lead and their grade is only 10-20% lower than that of industrial ore. In addition, it should also be noted that the tailings of the concentrator have been subjected to operations such as mining, transportation, crushing and grinding and the like, and therefore the lowest industrial grade for the metal to be recovered is undoubtedly lower than the boundary grade of the ore for tailings reprocessing .