Generally refers to a complex sulfide ores of copper, lead, zinc, iron, and other sulfides of at least two or three ore more dense symbiotic, or by a multi-part metal sulfide ore to oxidative deterioration. In complex sulfide ore, due to the close proximity of certain minerals, especially the secondary copper and pyrite, the mineral inlay is extremely fine, the structure is complex, the oxidation is serious, the mud content is large, etc., so that the complex sulfide ore The selection is very difficult. In recent years, extensive research has been carried out on various sorting methods at home and abroad, and continuous improvement has been made in the process flow, which greatly improves the sorting index of complex sulfide ore.
Complex sulfide ore can be divided into copper-zinc-sulfur ore, copper-lead-zinc-sulfur ore and copper-lead-zinc ore.
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