赤泥资源化综合利用现状及展望

Current situation and prospect of red mud resource comprehensive utilization

中国作为氧化铝生产大国,每年排放的赤泥高达1亿t,但由于缺乏大规模综合利用赤泥的有效方法,累计堆存量已超过10亿t。2022年印发的《加快推动工业资源综合利用实施方案》和《防范化解尾矿库安全风险工作方案》对赤泥综合利用均提出了要求,赤泥的大规模综合利用迫在眉睫。本文基于前期研究工作基础以及文献调研,系统地对赤泥理化特性、产生现状和当前利用情况进行总结分析,并结合赤泥特性,综合梳理赤泥在冶金、建筑、环境和消防四个领域的重点研究方向及存在问题,并提出发展建议,为赤泥未来资源化利用提供参考。

As a major alumina producer,China discharges 100 million tons of red mud every year.However,due to the lack of effective methods for large-scale comprehensive utilization of red mud,the cumulative stockpile stock has exceeded 1 billion tons.The Implementation Plan for Accelerating the Comprehensive Utilization of Industrial Resources and the Work Plan for Preventing and Resolving the Safety Risks of Tailings Pond issued in 2022 put forward requirements for the comprehensive utilization of red mud.Large scale comprehensive utilization of red mud is imminent.Based on the previous research work and literature research,this paper systematically summarizes and analyzes the physical and chemical characteristics,production status and current utilization of red mud.Combined with the characteristics of red mud,this paper comprehensively combs the key research directions and existing problems of red mud in the four fields of metallurgy,architecture,environment and fire protection.Some development suggestions have been put forward to provide references for the future resource utilization of red mud.