Processes of conversion of copper-sulfide concentrate by low-temperature sintering of the concentrate without the addition of chemical reagents and subsequent cake leaching with water are studied. The regimes of sintering of the concentrate are worked out. Copper-sulfate- and iron-containing cake are obtained as final products after cake leaching and filtration. The emission of sulfur-containing gases into the atmosphere is excluded due to their absorption by KOH with the formation of potassium sulfate.

中文翻译：

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硫化铜精矿加工研究

研究了在不添加化学试剂的情况下，通过精矿的低温烧结以及随后的滤饼水浸来转化硫化铜精矿的过程。制定了精矿的烧结制度。经过滤饼浸出和过滤后，得到含硫酸铜和铁的滤饼作为最终产品。由于含硫气体被 KOH 吸收并形成硫酸钾，因此不会向大气中排放含硫气体。