铜矿物及其伴生资源的选矿技术现状

    Current status of mineral processing technology for copper minerals and their associated resources

    • 摘要: 针对铜应用领域的不断拓展和持续旺盛的要求,系统综述了铜矿物及其伴生资源的选矿技术现状与发展趋势。首先,概述了铜的工业应用领域与分布、铜矿物的物理化学性质及全球铜资源分布特征,介绍了铜资源中常见的伴生资源、产出特征及选矿回收技术。其次,归纳了硫化铜矿与氧化铜矿的矿物特性及选矿工艺,总结了浮选流程优化、浸出技术突破、预处理与表面改性等创新工艺对提升铜回收效率方面的研究现状;探讨了铜钼分离、铜铅锌多金属矿分选、金银稀贵金属及钴镍战略金属协同回收等综合回收技术,涵盖绿色抑制剂开发、联合工艺流程优化等技术动态。最后,针对难选铜矿资源,归纳了从传统浮选强化到选冶联合、生物冶金等多种技术路径,指出未来技术发展将更加注重精细化、联合化与绿色化,以实现低品位、复杂共伴生及难处理铜矿资源的高效利用。

       

      Abstract: A systematic review is presented on the current status and development trends of mineral processing technologies for copper minerals and their associated resources, in response to the expanding applications and sustained demand for copper. An overview is first provided of copper’s industrial applications and distribution, the physicochemical properties of copper minerals, and the global characteristics of copper resource distribution. This is followed by an introduction to the common associated resources in copper deposits, their occurrence features, and the technologies for their recovery during mineral processing. The mineral characteristics and processing technology for both sulfide and oxide copper ores are summarized, with emphasis placed on current research in innovations aimed at improving copper recovery efficiency. These innovations include flotation process optimization, breakthroughs in leaching technologies, and pretreatment and surface modification techniques. Detailed discussion is devoted to comprehensive recovery technologies, covering copper-molybdenum separation, the selective separation of copper-lead-zinc polymetallic ores, and the synergistic recovery of precious metals such as gold and silver, as well as strategic metals like cobalt and nickel. Technological developments in areas such as eco-friendly depressants and integrated process optimization are encompassed. Finally, for refractory copper resources, various technical approaches are summarized, ranging from enhanced traditional flotation to combined mineral processing and metallurgy, and biohydrometallurgy. It is pointed out that future technological development will place greater emphasis on refinement, integration, and greening to achieve the efficient utilization of low-grade, complexly associated, and refractory copper resources.

       

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