1. Flotation Flotation is the most widely used method in copper ore beneficiation, particularly suitable for processing fine-grained, disseminated ores. Its basic principle is to utilize the differences in the physical and chemical properties of the mineral surfaces and, through the addition of flotation reagents, separate valuable minerals from gangue minerals. During the flotation process, copper mineral particles adhere to bubbles and rise to the liquid surface with them, forming a froth layer, while gangue minerals remain in the slurry, achieving separation. Flotation typically involves multiple stages, including roughing, cleaning, and scavenging. Parameters such as reagent system, aeration volume, and slurry concentration require flexible adjustment based on ore properties and beneficiation requirements. 2. Magnetic Separation Although copper ore itself is not magnetic, some copper ores often contain associated magnetic minerals, such as magnetite. Magnetic separation primarily exploits the magnetic differences between these minerals to separate them. Magnetic separation serves as a pretreatment step before beneficiation to remove impurities that could negatively impact subsequent beneficiation. The more magnetic separations are repeated and the finer the copper ore particle size, the better the impurity removal. 3. Gravity Separation Gravity separation separates mineral particles based on density differences and is suitable for processing...
