ZnFe2O4與CaCl2氯化反應機理

郭婷; 胡曉軍; 侯新梅; 松浦宏行; 月橋文孝; 周國治

doi:10.13374/j.issn1001-053x.2011.04.016

ZnFe₂O₄與CaCl₂氯化反應機理

doi: 10.13374/j.issn1001-053x.2011.04.016

郭婷^1,2,
胡曉軍^1,3, ,,
侯新梅^1,3,
松浦宏行⁴,
月橋文孝⁴,
周國治^1,3

1. 北京科技大學冶金與生態工程學院, 北京 100083;
2. 首鋼技術研究院, 北京 100043;
3. 北京科技大學生態與循環冶金教育部重點實驗室, 北京 100083;
4. 東京大學大學院新領域創成科學研究科, 柏 277-8561, 日本

基金項目:

國家科技支撐計劃資助項目(2006BAE03A10)

北京科技大學冶金與生態工程學院青年創新基金資助項目

詳細信息

通訊作者:
胡曉軍,E-mail:huxiaojun@ustb.edu.cn

中圖分類號: TF09;TF01
計量
- 文章訪問數: 189
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- 被引次數: 0
出版歷程
- 收稿日期: 2010-06-01
- 網絡出版日期: 2021-07-30
- 刊出日期: 2021-07-30

Chlorination reaction mechanism between ZnFe₂O₄ and CaCl₂

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Shougang Research Institute of Technology, Beijing 100043, China;
3. Key Laboratory of the Ministry of Education of China for Ecological and Recycle Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
4. Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

摘要

摘要: 利用CaCl₂為氯源與含鋅冶金粉塵的重要組分ZnFe₂O₄進行反應,并利用掃描電鏡(SEM)和能量色散譜儀(EDS)分析了ZnFe₂O₄粉體與CaCl₂反應面和反應產物微觀形貌的變化,討論了ZnFe₂O₄與CaCl₂的反應機理.認為反應過程包括一個固液反應和氣體揮發過程.ZnFe₂O₄顆粒被熔融CaCl₂包裹,在固液界面發生氯化反應,生成的ZnCl₂溶解在CaCl₂液膜中,并在氣液界面揮發逸出,而CaFe₂O₄的產物層不斷增大,同時伴隨著多個顆粒間的黏結和融合長大.
- 冶金工業 /
- 固體廢棄物 /
- 粉塵 /
- 氯化 /
- 反應機理
Abstract: CaCl₂ was used to chlorinate ZnFe₂O₄,an important component in metallurgical dust.The changes of the reaction surface between ZnFe₂O₄ and CaCl₂ and the microstructure of reaction products were investigated by scanning electron microscopy(SEM) and energy dispersive spectrometry(EDS),and the reaction mechanism was discussed.It is considered that the whole process includes a solid-liquid reaction and a gas volatilization.ZnFe₂O₄ particles are coated by melted CaCl₂ and the chlorination reaction occurs at the liquid-solid interface,the product ZnCl₂ dissolves in the liquid membrane of CaCl₂ and escapes from the gas-liquid interface.During the chlorination reaction,the product layer of ZnFe₂O₄ increases companying with the adhering and growing up of the particles.
- metallurgical industries /
- solid wastes /
- dust /
- chlorination /
- reaction mechanism