Non-Ferrous Metal Ore Beneficiation Process and Flow

Non-ferrous metal beneficiation separates minerals from gangue and removes or reduces harmful impurities by utilizing differences in the physical and chemical properties of different ores. The run-of-mine ore undergoes crushing and grinding first, followed by beneficiation processes. The resulting concentrate is then smelted to produce metal products. In China, the primary beneficiation methods include gravity separation, magnetic separation, flotation, and electrostatic separation. For example:

· Gravity separation is used for copper, lead, and zinc ores.

· Magnetic separation is applied to sulfide ores.

· Flotation is employed for gold, silver, copper, lead, zinc, and molybdenum ores.

· Electrostatic separation is used for separating scheelite from cassiterite and for the concentration of tantalite-columbite.

Non-ferrous metal ores are often polymetallic, with generally low grades of the target metals. Mining and beneficiation become economically viable only when the deposit reaches a certain scale and the ore grade meets the minimum industrial requirement.

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