基于離子和分子共存理論的爐渣氧化能力表征

李鵬程; 李晉巖; 張盟; 張建良; 張鑒; 楊學民

doi:10.13374/j.issn1001-053x.2013.12.001

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基于離子和分子共存理論的爐渣氧化能力表征

doi: 10.13374/j.issn1001-053x.2013.12.001

李鵬程^1,2,
李晉巖^1,2,
張盟³,
張建良¹,
張鑒¹,
楊學民^2, ,

1. 北京科技大學鋼鐵冶金新技術國家重點實驗室, 北京 100083;
2. 中國科學院過程工程研究所多相復雜系統國家重點實驗室, 北京 100190;
3. 北京中冶設備研究設計總院有限公司, 北京 100029

基金項目:

國家自然科學基金資助項目(51174186)

詳細信息

通訊作者:
楊學民,E-mail:yangxm71@home.ipe.ac.cn

中圖分類號: TF01
計量
- 文章訪問數: 358
- HTML全文瀏覽量: 117
- PDF下載量: 17
- 被引次數: 0
出版歷程
- 收稿日期: 2012-11-19

Expression of oxidation ability for metallurgical slags based on the ion and molecule coexistence theory

1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
2. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
3. Beijing Metallurgical Equipment Research & Design Institute Company Limited, China Metallurgical Group Corporation, Beijing 100029, China

摘要

摘要: 選用文獻報道的14個渣系鐵氧化物活度a_{Fe_tO}作為基礎實驗數據,驗證了基于爐渣離子-分子共存理論(IMCT)所定義的鐵氧化物綜合質量作用濃度N_{Fe_tO}表征爐渣氧化性的可能性和精度.為了得到14個渣系的N_{Fe_tO},建立了CaO-SiO₂-MgO-FeO-Fe₂O₃-MnO-Al₂O₃-P₂O₅渣系的IMCT-N_i模型,其他13個渣系N_{Fe_tO}可由該渣系的IMCT-N_i模型經簡化得到.結果表明,鐵氧化物綜合質量作用濃度N_{Fe_tO}不僅可像活度a_{Fe_tO}一樣表征爐渣氧化性,而且比實測a_{Fe_tO}精度更高.
- 鐵氧化物 /
- 質量作用濃度 /
- 活度系數 /
- 共存理論 /
- 結構單元
Abstract: The defined oxidation ability of metallurgical slag based on the ion and molecule coexistence theory (IMCT), i.e., the comprehensive mass action concentration of iron oxides N_{Fe_tO}, was verified by comparing the calculated N_{Fe_tO} and the reported activity of iron oxides αFetO in selected 14 slag systems. To calculate N_{Fe_tO} in the selected slag systems, a thermodynamic model for calculating the mass action concentrations of structural units in CaO-SiO₂-MgO-FeO-Fe₂O₃-MnO-Al₂O₃-P₂O₅ type slag systems, i.e., the IMCT-N_i thermodynamic model was developed. N_{Fe_tO} in the other 13 slag systems can be obtained by simplifing this IMCT-N_i. It is shown that the defined comprehensive mass action concentration of iron oxides N_{Fe_tO} is more accurate than the measured activity of iron oxides a_{Fe_tO} in characterizing the oxidation ability of the selected Fe_tO-containing slag systems.
- iron oxides /
- mass action concentration /
- activity coefficients /
- coexistence theory /
- structural units