Chemical Corrosion of Dense Al2O3 by ZnO-containing Fayalite Slags
Fayalite slags with different ZnO levels can be generated in secondary copper smelters as feeding materials may contain Zn or ZnO.For the furnace linings, Al2O3-based refractories are potential alternatives for magnesia-chromite refractories as they do not suffer from the possible formation of hazardous Cr6+ containing phases.Therefore, the chemical corrosion of Al2O3 by ZnO-containing fayalite slags was investigated in this work by Al2O3 crucible tests at 1200 ℃ for 4 h under Ar atmosphere.The influence of the ZnO level, FeO/SiO2 ratio and CaO/SiO2 ratio of the slag on the Al2O3 dissolution and the Al2O3/slag interracial reactions was studied.The microstructure of the corroded Al2O3 crucibles and the slag composition were analyzed by electron probe micro-analysis equipped with a wavelength dispersive spectroscope (EPMA-WDS).The experimental results from the crucible tests were interpreted by thermodynamic calculations.
Al2O3 ZnO-containing fayalite slags corrosion
CHEN Liugang GUO Muxing SHI Huayue Bart BLANPAIN Annelies MALFLIET
School of Materials Science and Engineering,Zhengzhou University,Kexue Avenue 100,Zhengzhou 450001,C Department of Materials Engineering,KU Leuven,Kasteelpark Arenberg 44,Leuven 3001,Belgium
国际会议
西安
英文
1-5
2016-09-20（万方平台首次上网日期，不代表论文的发表时间）