钽铌尾矿制备发泡陶瓷研究  

Preparation of foamed ceramics from tantalum niobium tailings

作　　者：汪劲刚 何桂春[1,2] 肖志 易晨 WANG Jingang;HE Guichun;XIAO Zhi;YI Chen(School of Resources and Environmental Engineerring,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;Jiangxi Provincial Key Laboratory of Mining Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西理工大学江西省矿业工程重点实验室,江西赣州341000

出　　处：《有色金属科学与工程》2023年第5期651-658,共8页Nonferrous Metals Science and Engineering

基　　金：江西省重点研发计划项目(20203BBGL73231);江西省研究生创新专项资金项目(YC2021-S551)。

摘　　要：发泡陶瓷作为一种新型的无机非金属材料,具有轻质、防火、耐高温、孔隙率高等特点,在很多领域都受到了广泛关注。本文以江西宜春钽铌尾矿为主要原料,SiC为发泡剂,辅以钠长石、高岭土等原料制备发泡陶瓷试样。采用XRD分析仪、TG-DTA热分析仪等分析检测手段,研究了烧成温度、保温时间、发泡剂掺量及尾矿加入量对发泡陶瓷试样性能的影响。结果表明:在钽铌尾矿加入量约60%、SiC0.5%、烧成温度1150℃、保温40min条件下,制备出孔径分布较好的发泡陶瓷试样,为尾矿减量化及其高附加值利用提供参考。As a new type of inorganic non-metallic material,foam ceramics have the characteristics of lightweight,fireproof,high-temperature resistance and high porosity,and have received widespread attention in many fields.In this paper,the tantalum niobium tailings from Yichun of Jiangxi province were used as the main raw material,SiC as the foaming agent,supplemented by albite,kaolin and other raw materials to prepare foamed ceramic specimens.The effects of sintering temperature,heat preservation time,blowing agent dine amount and tailings addition amount on the performance of foamed ceramic specimens were investigated by analysis and detection methods,such as XRD and TG-DTA.The results show that a foamed ceramic specimen with a good pore size distribution can be successfully prepared when the amount of tantalum niobium tailings added in is controlled at about 60%,SiC content of 0.5%,sintering temperature at 1150℃and heat preservation time of 40 min,which provides a certain basis for the reduction of tailings and its high value-added utilization.

关 键 词：钽铌尾矿 发泡陶瓷 发泡剂 

分 类 号：TQ174[化学工程—陶瓷工业]