铜渣资源化利用技术现状

发布时间：2018-01-02 23:28

本文关键词：铜渣资源化利用技术现状　出处：《金属矿山》2017年11期 　论文类型：期刊论文

【摘要】：铜渣是一种大宗工业固体废弃物,同时也是有较高附加值的二次资源,其铜含量通常超过0.5%,铁含量更是高达40%以上,因此,开发利用这种二次资源对缓解土地资源和环境污染压力具有重要意义。分析了不同熔炼方法获得的各类铜渣的成分差异、性质特点;较详细介绍了铜渣中主要有益元素铜、铁的回收工艺,列举了铜的火法贫化、选矿法和湿法回收工艺的研究与应用情况,以及以磁选为中心的选铁工艺研究与应用情况;并从整体利用的角度介绍了铜渣在水泥制取、作为建筑与道路工程中的应用情况。最后提出从控制铜渣形成环节入手,既实现铜渣中有价组分的高效回收,铜渣物理性质的充分利用,还实现熔融铜渣余热利用的思想。
[Abstract]:Copper slag is a large industrial solid waste, but also a secondary resource with high added value. Its copper content is usually more than 0.5, iron content is as high as more than 40%, so. The development and utilization of this secondary resource is of great significance to alleviate the pressure of land resources and environmental pollution. The composition and properties of various copper slag obtained by different smelting methods are analyzed. The recovery process of copper and iron in copper slag is introduced in detail, and the research and application of copper pyrolysis, ore dressing and wet recovery are listed. And the research and application of iron separation technology with magnetic separation as the center; It also introduces the application of copper slag in cement making as a building and road engineering from the perspective of overall utilization. Finally, it is put forward that the efficient recovery of valuable components in copper slag can be realized by controlling the formation of copper slag. The full utilization of the physical properties of copper slag also realized the idea of residual heat utilization of molten copper slag.
【作者单位】：中南大学资源加工与生物工程学院;
【分类号】：X758
【正文快照】： 铜是电气、轻工、机械制造、建筑和国防等领域不可或缺的重要有色金属,我国约有97%的铜由铜精矿火法冶炼而来[1]。根据2016年我国精炼铜产量844万t推算,年产铜渣近2 000万t。如此巨量的铜渣中,只有少量有价元素被回收利用,其余都被堆存处理,这不仅占用大量的土地,还会对周围的

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