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Extracting Copper from Copper Ore

     

Methods for Extracting Copper from Copper Ore:

There are pyrometallurgical and hydrometallurgical methods for extracting copper from copper ore. Pyrometallurgy is the main approach for copper smelting; currently, 80% of the world’s primary copper is produced via this method. Hydrometallurgy, by contrast, features low cost, low energy consumption, minimal pollution, and suitability for processing low-grade and refractory complex ores.

Glycine, an organic acid, is environmentally friendly. Experiments were conducted to study copper leaching from a low-grade copper ore in Tongling, Anhui using glycine, aiming to explore a green and economic pathway for the effective recovery of low-grade copper ore.

Under atmospheric pressure and alkaline conditions, the copper leaching rate from the Tongling ore reached over 93% with glycine, while iron was inhibited and barely leached—achieving excellent separation of copper and iron. Glycine is non-toxic, pollution-free, and eco-friendly. This method can support the effective utilization of copper ore resources with low grade and high iron content.

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