稀土尾矿及废石在建材制造中的综合利用研究  

Comprehensive Utilization of Rare Earth Tailings and Waste Rocks in Building Material Manufacturing

作　　者：彭珮媛 张巍 李成 杨晓军 商容生 冯振华 Peng Peiyuan;Zhang Wei;Li Cheng;Yang Xiaojun;Shang Rongsheng;Feng Zhenhua(Evaluation and Utilization of strategic Rare Metals and Rare Earth Resource Key Laboratory of Sichuan Province,Sichuan Experimental Testing Research Center of Natural Resources,Chengdu,Sichuan 610081)

机构地区：[1]四川省自然资源实验测试研究中心稀有稀土战略资源评价与利用四川省重点实验室,四川成都610081

出　　处：《非金属矿》2024年第6期26-29,共4页Non-Metallic Mines

基　　金：四川省地质调查研究院重点科研项目(SCIGS-CZDZXM-2024005)。

摘　　要：针对四川地区的稀土尾矿、废石资源综合利用形成的光电选尾矿和最终尾矿,探讨其在建材制造中的综合利用途径。结果表明,光电选尾矿直接作为建筑骨料的可行性较低,但适合作为替代材料用于生产高附加值钙产品;稀土最终尾矿则可用于制备硅酸盐水泥,不仅能满足GB 175—2023标准中硅酸盐水泥的要求,还能显著提升水泥的抗压和抗折强度。本研究为稀土尾矿和废石的大规模资源化利用提供了新的思路,并有助于改善环境问题。Aiming at the photoselecting tailings and final tailings formed by the comprehensive utilization of rare earth tailings and waste rocks in Sichuan province,we explore the comprehensive utilization approaches in the field of building materials manufacturing.The results show that the feasibility of using photometric tailings directly as construction aggregates is low relatively,but they are suitable for producing high-value calcium products as alternative materials.Meanwhile,the rare earth tailings can be used to prepare silicate cement,which not only meets the requirements for Portland cement in GB 175—2023 standard,but also significantly enhances the compressive and flexural strength of cement.This work provides a new perspective for the large-scale resource utilization of rare earth tailings and waste rocks,and helps to improve environmental problems.

关 键 词：稀土尾矿 采矿废石 硅酸盐水泥 抗压强度 

分 类 号：TU528[建筑科学—建筑技术科学] X75[环境科学与工程—环境工程]