有色金属矿山尾矿综合利用进展

Research Progress of Comprehensive Utilization of Nonferrous Metals Mine Tailings

  • 摘要: 有色金属矿山尾矿的大量排放堆存占用土地,造成矿产资源的浪费,以及存在直接或潜在的安全隐患和环境危害。通过有色金属矿山尾矿综合利用的研究现状总结,阐述了有色金属矿山尾矿以下利用现状:再选回收有价金属及非金属矿物;在环保领域用作吸附剂、中和剂及滤料;用作原料或辅料制备地聚物、分子筛、白炭黑及硅微粉;用于制砖、水泥、混凝土、陶瓷及玻璃;用作土壤改良剂和制备化肥;用于井下充填材料。并分析论述了综合利用中存在的问题与困境,指出需持续不断的加大科研投入,对已有的综合利用技术进行创新以降低成本、技术难度及简化工艺,且探索新的利用途径以扩大尾矿的使用范围、消纳量及提高附加值。

     

    Abstract: The large amount of discharged nonferrous metal mine tailings occupy land, resulting in the waste of mineral resources. There are direct or potential safety risks and environmental hazards. Based on the analysis of the current research status of the comprehensive utilization of nonferrous metal mine tailings, the following utilization status of nonferrous metal mine tailings is described as follows: recovering valuable metals and nonmetallic minerals from nonferrous metal mine tailings; the nonferrous metal mine tailings are used as adsorbent, neutralizer and filter material in the field of environmental protection; nonferrous metal mine tailings used as raw material or auxiliary materials for geopolymer, molecular sieve, white carbon black and microsilica; nonferrous metal mine tailings used as materials for making brick, cement, concrete, ceramics and glass; nonferrous metal mine tailings used as soil amendment and chemical fertilizer making; nonferrous metal mine tailings used as underground filling materials. The problems and difficulties in comprehensive utilization are analyzed and discussed. It is necessary to continuously increase investment in scientific research and innovate existing comprehensive utilization technologies to reduce costs, technical difficulties and simplify processes. And it is necessary to explore new ways of utilization to expand the scope of use, consumption and increase the added value of tailings.

     

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