MnO2对钼尾矿基发泡陶瓷升温速率影响的研究  

Influence of MnO2 on Heating Rate of Foam Ceramics Based on Molybdenum Tailing

作　　者：赵威 王竹[2] 戴永刚 周春生 南宁 ZHAO Wei;WANG Zhu;DAI Yonggang;ZHOU Chunsheng;NAN Ning(Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, College of Chemical Engineering and Modern Materials,Shangluo University, Shangluo 726000, China;Guangdong KITO Ceramics Co., Ltd., Foshan 528031, China;School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China)

机构地区：[1]商洛学院化学工程与现代材料学院,陕西省尾矿资源综合利用重点实验室,商洛726000 [2]广东金意陶陶瓷集团有限公司,佛山528031 [3]华南理工大学材料科学与工程学院,广州510640

出　　处：《硅酸盐通报》2020年第4期1266-1271,共6页Bulletin of the Chinese Ceramic Society

基　　金：陕西省科技厅重点研发计划项目(2018GY-123);商洛学院科研计划项目(15SKY022);商洛市科技计划项目(SK2018-03-02)。

摘　　要：随着发泡陶瓷社会需求的增多,采用固体废弃物烧制发泡陶瓷成为了研究热点。但关于如何缩短烧成周期,提高生产效率的研究寥寥无几。研究采用商洛钼尾矿为主要原料烧制发泡陶瓷,加入氧化剂MnO2,弥补发泡剂由于氧气不足而引起的发泡不均。在相同升温速率下,加入MnO2可使发泡陶瓷的平均孔径明显增大。在满足使用要求的条件下,将高温段的升温速率从3℃/min提高到5℃/min,缩短烧成周期约45 min,提高发泡陶瓷生产效率。The preparation of foam ceramics with solid waste has become a hotspot as the increasing demand for foam ceramics.But there are few researches on how to shorten the sintering cycle and increase production efficiency of foam ceramics.In this study,Shangluo molybdenum tailings were used as main raw material to sinter foam ceramics.The oxidizing agent MnO2 was added to compensate for the uneven foaming of the foaming agent due to insufficient oxygen.At the same heating rate,the addition of MnO2 significantly increases the average pore diameter of the foam ceramics.Under the conditions that meet the requirements of use,the heating rate of high temperature section can be increased from 3℃/min to 5℃/min.The sintering cycle is shorten about 45 min.The production efficiency of foam ceramics is improved.

关 键 词：发泡陶瓷 氧化剂 MNO2 钼尾矿 

分 类 号：TQ174[化学工程—陶瓷工业]