铝土矿尾矿协同钒钛磁铁矿尾矿制备刚玉质复相陶瓷  

Preparation of Corundum Based Composite Ceramics Using Bauxite Tailings and Vanadium−titanium Magnetite Tailings as Raw Materials

作　　者：陈靖龙 郎增瑞 杨帆 陈新义 闵鑫[1] 房明浩[1] 黄朝晖[1] 黄妃慧 CHEN Jinglong;LANG Zengrui;YANG Fan;CHEN Xinyi;MIN Xin;FANG Minghao;HUANG Zhaohui;HUANG Feihui(School of Materials Science and Technology,Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources,Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes,National Laboratory of Mineral Materials,China University of Geosciences(Beijing),Beijing 100083,China;Lingyuan Iron and Steel Co.,LTD.,Lingyuan 122504,Liaoning,China;Shandong Aofu Environmental Technology Co.,Ltd.,Dezhou 251599,Shandong,China)

机构地区：[1]中国地质大学(北京)材料科学与工程学院,地质碳储与资源低碳利用教育部工程研究中心,非金属矿物与固废资源材料化利用北京市重点实验室,矿物材料国家专业实验室,北京100083 [2]凌源钢铁股份有限公司,辽宁凌源122504 [3]山东奥福环保科技股份有限公司,山东德州251599

出　　处：《矿产保护与利用》2024年第2期99-105,共7页Conservation and Utilization of Mineral Resources

基　　金：国家重点研发计划“固废资源化”专项项目课题(2018YFC1901501,2021YFC1910605)。

摘　　要：以铝土矿尾矿和钒钛磁铁矿尾矿为原料,经混料、成型和高温烧成等工艺制备了刚玉质复相陶瓷,研究了钒钛磁铁矿尾矿添加量、烧成温度等因素对制得复相陶瓷材料的物相、显微形貌及力学性能的影响规律。结果表明:当铝土矿尾矿与钒钛磁铁矿尾矿质量比为9∶1时,在1100℃下保温3 h制得刚玉质复相陶瓷材料的性能最优,其体积密度为2.71 g/cm^(3),抗压强度为276.9 MPa,抗折强度为67.3 MPa。The corundum based composite ceramics were prepared via a high temperature sintering process,using the bauxite tailings and vanadium−titanium magnetite tailings as raw materials.The effects of vanadium−titanium magnetite tailings addition and sintering temperature on the phase composition,morphology,and mechanical properties of the as−prepared composite ceramics were investigated in detail.The results indicated that the best performances were observed with the content ratio of 9∶1 between bauxite tailings and vanadium−titanium magnetite,after sintering at 1100℃for 3 h.The optimized volume density,compressive strength,and flexural strength were 2.71 g/cm^(3),276.9 MPa,and 67.3 MPa,respectively.

关 键 词：铝土矿尾矿 钒钛磁铁矿尾矿 烧成温度 力学性能 刚玉质复相陶瓷 

分 类 号：TD926.4[矿业工程—选矿]