利用黄金尾矿制备发泡陶瓷的研究

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (9): 2989-2997.

利用黄金尾矿制备发泡陶瓷的研究

朱建平, 乐红志, 白荣, 朱俊阁, 李洪达

山东理工大学材料科学与工程学院,淄博 255000

收稿日期:2021-04-02 修回日期:2021-05-20 出版日期:2021-09-15 发布日期:2021-10-08
通讯作者: 乐红志,博士,副教授。E-mail:yhz@sdut.edu.cn
作者简介:朱建平(1995—),男,硕士研究生。主要从事生态环境材料的研究。E-mail:930214580@qq.com
基金资助:
淄博市校城融合计划项目(2018ZBXC002);山东省重大科技创新工程项目(2018CXGC1011)

Research on Preparation of Foamed Ceramics from Gold Tailings

ZHU Jianping, YUE Hongzhi, BAI Rong, ZHU Junge, LI Hongda

School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China

Received:2021-04-02 Revised:2021-05-20 Online:2021-09-15 Published:2021-10-08

摘要/Abstract

摘要： 中国黄金尾矿资源量大,作为二次资源在建筑材料领域的综合利用有着重要的经济价值和环境意义。以黄金尾矿为主要原料,SiC为发泡剂,通过高温制备发泡陶瓷,用激光共聚焦显微镜、XRD等手段,研究了烧结温度、黄金尾矿掺入量、原料粒度对材料的容重、真气孔率和孔径等性能的影响。研究表明:随着烧结温度的升高,发泡陶瓷材料的真气孔率和孔径增大,容重减小;材料的真气孔率和容重随着黄金尾矿掺入量的增大分别降低和提高,随着原料粒度的减小分别提高和降低,气孔孔径随着黄金尾矿掺量的增大和原料粒度的减小均呈下降趋势。优化后,在烧成温度1 050 ℃,黄金尾矿掺入量50%(质量分数),黄金尾矿平均粒度D(50)=5.6 μm,SiC平均粒度D(50)=3.0 μm的条件下可制备出性能良好的发泡陶瓷。

关键词: 黄金尾矿, 发泡陶瓷, 烧结温度, 粒度, 孔隙率, 容重

Abstract: China's gold tailings have a large amount of resources, and the comprehensive utilization of secondary resources in the field of construction materials has important economic value and environmental significance. Using gold tailings as main raw material and SiC as foaming agent, foamed ceramics were prepared at high temperature. The effects of sintering temperature, amount of gold tailings and particle size of raw materials on bulk density, true porosity and pore size of materials were studied by laser confocal microscope and XRD. The results show that with the increase of sintering temperature, the true porosity and pore diameter of the foamed ceramics increase, while the bulk density decreases. The true porosity and bulk density of the material decrease and increase with the increase of the amount of gold tailings, and increase and decrease with the decrease of the particle size of raw materials. The pore diameter decreases with gold tailings increase or particle size reduction of raw material. After optimization, foamed ceramics with good performance are prepared under the conditions of sintering temperature of 1 050 ℃, 50% of gold tailings, the average particle size of gold tailings D(50)=5.6 μm and the average particle size of SiC D(50)=3.0 μm.

Key words: gold tailing, foamed ceramics, sintering temperature, particle size, porosity, bulk density

中图分类号:

X753

朱建平, 乐红志, 白荣, 朱俊阁, 李洪达. 利用黄金尾矿制备发泡陶瓷的研究[J]. 硅酸盐通报, 2021, 40(9): 2989-2997.

ZHU Jianping, YUE Hongzhi, BAI Rong, ZHU Junge, LI Hongda. Research on Preparation of Foamed Ceramics from Gold Tailings[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(9): 2989-2997.

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