Research Progress of Comprehensive Utilization of Iron Tailings in China
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.
Iron tailingscomprehensive utilizationcement-based materialscompound improvers