利用石墨尾矿制备陶瓷砖的试验研究  

Experimental Study on Preparation of Ceramic Tiles from Graphite Tailings

作　　者：程飞飞 于阳辉[1,2] 张韬 Cheng Feifei;Yu Yanghui;Zhang Tao(Suzhou Sinoma Design&Research Institute of Non-metallic Minerals Industry Co.,Ltd.,Suzhou,Jiangsu 215151;National Engineering Research Center for Further Processing of Non-metallic Minerals,Suzhou,Jiangsu 215151)

机构地区：[1]苏州中材非金属矿工业设计研究院有限公司,江苏苏州215151 [2]国家非金属矿深加工工程技术研究中心,江苏苏州215151

出　　处：《非金属矿》2020年第4期62-64,共3页Non-Metallic Mines

基　　金：国家重点研发计划(2017YFB0310905)。

摘　　要：以石墨尾矿为主要原料制备陶瓷砖。结果表明,在m (石墨尾矿)∶m(高岭土)∶m(长石)=55∶25∶20,煅烧条件为1 120℃、90min时,制备的陶瓷砖吸水率为0.26%、抗折强度为73.55 MPa,满足GB/T 4100-2015《陶瓷砖》中瓷质砖相关要求。机理分析表明,煅烧后陶瓷砖中产生大量的玻璃相,形成了钙长石和莫来石等新晶相,同时未熔化的石英组成了陶瓷砖的骨架结构,赋予了陶瓷砖良好的综合性能。Graphite tailings could be used as the main raw material for making ceramic tiles. When the mass ratio of graphite tailings, kaolin and feldspar was 55∶25∶20, the calcination conditions were 1 120 ℃ and 90 min, the water absorption of ceramic tiles was 0.26% and the flexural strength was 73.55 MPa, which met the requirements of standard GB/T 4100-2015. The mechanism analysis showed that a large number of glass phases were produced after calcining, and new crystal phases such as anorthite and mullite were also formed, and unmelted quartz formed the skeleton structure of ceramic tiles, which gave the ceramic tiles good comprehensive performance.

关 键 词：石墨尾矿 陶瓷砖 抗折强度 晶相 

分 类 号：TQ174.76[化学工程—陶瓷工业]