Acting mechanism of F,K, and Na in the solid phase sintering reaction of the Baiyunebo iron ore |
| |
Authors: | Zhi-zhong Hao Sheng-li Wu Yi-ci Wang Guo-ping Luo Hu-lin Wu Xiang-guang Duan |
| |
Institution: | (1) Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Material Science, South Central University for Nationalities, Wuhan, 430074, Hubei, P.R. China |
| |
Abstract: | The effect of F, K, and Na on the solid phase reaction of the Baiyunebo iron ore was investigated by differential thermal
analysis (DTA) and X-ray diffraction (XRD). It has been identified that alkaline elements K and Na in the Baiyunebo ore instigate
the formation of low melting point compounds Na2SiO3 and Na2O·Fe2O3 and the generation of molten state in the solid phase sintering. Element F in the Baiyunebo ore facilitates the formation
of cuspidine compound 3CaO·2SiO2·CaF2 in the solid phase reaction. The cuspidine compound is kept in solid as one of the final products through the entire sintering
process due to its high melting point. In the sintering process, CaF2 and SiO2 react with CaO first and form 3CaO·2SiO2·CaF2 and 3CaO·2SiO2, so the formation of ferrites, Na2O·Fe2O3, and 2CaO·Fe2O3 is inhibited. |
| |
Keywords: | |
本文献已被 万方数据 SpringerLink 等数据库收录! |
| 点击此处可从《矿物冶金与材料学报》浏览原始摘要信息 |
| 点击此处可从《矿物冶金与材料学报》下载免费的PDF全文 |
|