It is difficult to achieve the requirements of copper oxide ore beneficiation using conventional magnetic separation and gravity separation methods. However, copper oxide ore beneficiation usually involves methods such as flotation, leaching and hydrometallurgical processes, each of which aims to maximize the recovery of valuable copper while minimizing the impact on the environment. Among them, flotation is the most common and highly used method.

1. Leaching methods

Leaching is the treatment of copper oxide with an acid solution to dissolve the copper content. It has become a mainstream method in modern mining operations due to its ability to effectively process low-grade ores. The acid solution dissolves the copper oxide, which can be more easily extracted and recovered through solvent extraction techniques or electrolysis.

2. Flotation process

By utilizing more efficient reagents and optimizing the pH in the flotation machines, miners can separate copper oxide from gangue material with unprecedented accuracy, thereby increasing overall copper production. In addition, combining froth flotation with advanced sensor technology allows for real-time monitoring and optimization of parameters, paving the way for smarter, greener operations that reduce waste and energy consumption.

• Use collectors that specifically target copper oxide, such as fatty acids or sulfonates. These collectors work by modifying surface properties at the molecular level, enhancing hydrophobicity while reducing unwanted interactions with gangue minerals. The strategic application of these agents can improve separation efficiency and concentrate grade, even when challenging ores laden with impurities.
• Biosurfactants are naturally occurring compounds that enhance the separation process by altering the surface properties of copper minerals. These environmentally friendly agents can improve selectivity and thus increase the grade of the concentrate.