作者：WU Xiaowen,CHI Peng,CHENG Bohao,ZHANG Yuena,SU Wei,MIN Xin,FANG Minghao,LIU Yan’gai,HUANG Zhaohui

作者单位：Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences

刊名：China’s Refractories

ISSN：1004-4493

出版年：2020-09-15

卷：29

期：3

起页：38-47

止页：

分类号：X705;TQ175.1

语种：英文

关键词：

内容简介

Due to the good thermal stability and excellent resistance to slag erosion, used refractories can be recycled as the main raw materials for some refractories. In this article the latest development about used refractories in metallurgical industry has been reviewed, focusing on the results reported in the past decade. The research and reutilization methods of used refractories were discussed. For the research of used refractories, two aspects, the performance and the surface erosion characteristics, were summarized. Then, the advances in research on recycling technology of several main kinds of used refractories, such as Mg O-C, Al2 O3-Si C-C, Al2O3-Mg O-C, magnesia-chrome, and corundum-spinel refractories were summarized and discussed in detail. Some results of the author’s group were reported accompanied by these comments. The microstructure and the chemical composition were studied by scanning electron microscopy and energy dispersion spectra, and the properties of the refractories were analyzed. Afterwards, the application scope of the materials was determined according to the classification and the analysis of refractories. Finally, the large-scale application of used refractories and an outlook were given to future developments of the entire recycling industry.