摘要
为了推动我国铁尾矿综合利用工作、有效缓解因尾矿堆存而引发的系列问题,从我国铁尾矿特性、大宗利用技术途径和高值化利用技术途径三个方面详细阐述了目前我国铁尾矿常见的综合利用途径.综合分析发现,有价元素和矿物回收存在低品位、难选别的铁尾矿回收效率有待提高的问题.水泥基材料和充填材料制备技术缺乏相应的产品标准和法律法规.高值化利用技术还需进一步的理论研究和试验验证以便早日实现工业化生产.进一步探讨了铁尾矿利用未来发展展望并提出鼓励加强技术创新与研究、完善法规政策及标准体系、探索多元化利用新途径、加大研发和推广资金支持力度等建议.
Abstract
In order to promote the comprehensive utilization of iron tailings in China and effectively alleviate a series of problems caused by tailings storage,an elaborate description of the common comprehensive utilization approaches of iron tailings in China is provided from three following aspects:characteristics of iron tailings,staple utilization techniques,and high-value utilization techniques.Through comprehensive analysis,it is found that there are challenges related to low recovery efficiency for valuable elements and minerals due to low quality and difficulties in separation.Moreover,there is a lack of corresponding product standards and laws for the preparation techniques of cement-based materials and filling material.In addition,f urther theoretical research and experimenta l verification are required for high-value utilization technologies for industrial production.Finally,this paper discusses the developing prospects of iron tailing utilization and proposes some suggestions,that is,encouraging technological innovation and research,improving regulatory policies and standard systems,exploring new approaches for utilization,and increasing research funding for R&D and promotion.
维普
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