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| Solid Phase Synthetic Reaction of Sodium Pyroxene for Na2 CO3-Fe （OH） 3-H2 SiO3 System | |
| 引用本文： | WANG Yi-ci,ZHANG Jian-liang,WANG Yue-cong,LUO Guo-ping. Solid Phase Synthetic Reaction of Sodium Pyroxene for Na2 CO3-Fe （OH） 3-H2 SiO3 System[J]. 钢铁研究学报(英文版), 2013, 20(1): 21-25. DOI: 10.1016/S1006-706X(13)60039-4 |
| 作者姓名： | WANG Yi-ci ZHANG Jian-liang WANG Yue-cong LUO Guo-ping |
| 作者单位： | 1. College of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China 2. College of Material and Metallurgy, University of Science and TechnologyInner Mongolia, Baotou 014010, Inner Mongolia, China |
| 基金项目： | Item Sponsored by National Natural Science Foundation of China （50944049） |
| 摘 要： | In order to explore synthetic method of pure sodium pyroxene,the pure chemical reagents of Na2CO3,Fe(OH)3 and H2SiO3were used as raw materials,and the possible solid phase reactions for Na2CO3-Fe(OH)3-H2SiO3system in heating process had been studied by means of differential thermal analysis(DTA)and X-ray diffraction(XRD). The influencing factors of sodium pyroxene(NaFeSi2O6)synthetic reaction,such as sintering temperature and holding time,had also been studied.The results show that sodium pyroxene can be largely synthesized at 737℃;it is helpful for synthesis of sodium pyroxene to increase sintering temperature appropriately,and the best temperature should be controlled at 900℃or so,because it will melt and decompose at temperatures higher than 900℃.In those influencing factors of sodium pyroxene synthesis the most important is temperature.The results will be helpful for providing pure NaFeSi2O6for further research on the formation of SFCA for NaFeSi2O6-KAlSi2O3-CaO-Fe2O3-CaF2 system in the sintering process of Bayan-obo iron ore. |
| 关 键 词： | solid phase synthesis sodium pyroxene Na2CO3-Fe(OH)3-H2SiO3system |
| 收稿时间： | 2011-10-18 |
Solid Phase Synthetic Reaction of Sodium Pyroxene for Na2CO3-Fe(OH)3-H2SiO3 System |
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| WANG Yi-ci , ZHANG Jian-liang , WANG Yue-cong , LUO Guo-ping. Solid Phase Synthetic Reaction of Sodium Pyroxene for Na2CO3-Fe(OH)3-H2SiO3 System[J]. Journal of Iron and Steel Research, 2013, 20(1): 21-25. DOI: 10.1016/S1006-706X(13)60039-4 | |
| Authors: | WANG Yi-ci ZHANG Jian-liang WANG Yue-cong LUO Guo-ping |
| Affiliation: | 1. College of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China; College of Material and Metallurgy, University of Science and Technology Inner Mongolia, Baotou 014010, Inner Mongolia, China 2. College of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China 3. College of Material and Metallurgy, University of Science and Technology Inner Mongolia, Baotou 014010, Inner Mongolia, China |
| Abstract: | In order to explore synthetic method of pure sodium pyroxene, the pure chemical reagents of Na2CO3, Fe(OH)3 and H2SiO3 were used as raw materials, and the possible solid phase reactions for Na2CO3-Fe(OH)3-H2SiO3 system in heating process had been studied by means of differential thermal analysis (DTA) and X-ray diffraction (XRD). The influencing factors of sodium pyroxene (NaFeSi2O6) synthetic reaction, such as sintering temperature and holding time, had also been studied. The results show that sodium pyroxene can be largely synthesized at 737 ℃; it is helpful for synthesis of sodium pyroxene to increase sintering temperature appropriately, and the best temperature should be controlled at 900 ℃ or so, because it will melt and decompose at temperatures higher than 900 ℃. In those influencing factors of sodium pyroxene synthesis the most important is temperature. The results will be helpful for providing pure NaFeSi2O6 for further research on the formation of SFCA for NaFeSi2O6-KAlSi2O3-CaO-Fe2O3-CaF2 system in the sintering process of Bayan-obo iron ore. |
| Keywords: | solid phase synthesis sodium pyroxene Naz CO3-Fe（OH）3-H2 SiO3 system |
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