Hydrometallurgical Processing of Copper-Smelting Dust

The article says the possibility of using copper smelting dust to neutralize sulfuric acid. This allows very expensive copper pellets not to be used for these purposes. The phase, mineralogical and chemical composition of dust studied, and the possibility of their processing by hydrometallurgical methods established. The optimal mode of water and sulphuric acid leaching of copper from the dust of the metallurgical plant was found. It was determined that the processing of oxygen-flare smelting dust in a separate cycle would improve the process of Flash Smelting Furnace (FSF) of sulfide copper concentrates, free the furnace from the ballast revolution of dust and increase the furnace capacity by 15-20%.

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