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材料导报  2025, Vol. 39 Issue (22): 24110073-6    https://doi.org/10.11896/cldb.24110073
  无机非金属及其复合材料 |
Fe/SiO2质量比对FeO-SiO2-Al2O3体系熔体黏度的影响机制
付芳忠1,2, 叶昊辉1,2, 胡金1,2, 姚明灿1,2, 林嘉豪1,2, 谢博毅1,2, 范鹤林1,2,*, 王瑞祥1,2, 徐志峰1,2,3
1 江西理工大学冶金工程学院,江西 赣州 341000
2 江西理工大学绿色冶金与过程强化研究所,江西 赣州 341000
3 江西应用技术职业学院,江西 赣州 341000
Principle of How Fe/SiO2 Mass Ratio Influences Melt Viscosity of FeO-SiO2-Al2O3 System
FU Fangzhong1,2, YE Haohui1,2, HU Jin1,2, YAO Mingcan1,2, LIN Jiahao1,2, XIE Boyi1,2, FAN Helin1,2,*, WANG Ruixiang1,2, XU Zhifeng1,2,3
1 School of Metallurgical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
2 Institute of Green Metallurgy and Process Intensification, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
3 Jiangxi College of Applied Technology, Ganzhou 341000, Jiangxi, China
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摘要 强化熔炼法能极大提高铜冶炼过程的生产效率与生产强度,降低能源消耗,但存在渣锍分离困难、渣中含铜量高的问题。本工作采用分子动力学模拟的方法,获得了FeO-SiO2-Al2O3体系熔体的结构及黏度。研究发现,随着Fe/SiO2质量比从0.8增加到1.8,Si-O的键长保持1.61 不变,平均CNSi-O和CNAl-O维持在4左右,O-Si-O键角基本不变,O-Al-O键角从103.50°增至106.37°;体系的聚集程度降低,单个聚集体粒子所拥有的非桥氧数量(NBO/T)从1.68增至3.72,黏度从0.48 Pa·s降至0.12 Pa·s。
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付芳忠
叶昊辉
胡金
姚明灿
林嘉豪
谢博毅
范鹤林
王瑞祥
徐志峰
关键词:  铜渣  熔体结构  造锍熔炼  渣锍分离  黏度  分子动力学模拟    
Abstract: The intensified smelting method can greatly improve the production efficiency and production intensity of the copper smelting process and reduce energy consumption, but also brings about problems of difficulty in separating matte from slag and high copper content of slag. In this work, the structure and viscosity of FeO-SiO2-Al2O3 system melt were obtained by molecular dynamics simulation. The investigation showed that, as the Fe/SiO2 mass ratio increases from 0.8 to 1.8, the bond length of Si-O remains unchanged at 1.61 , the average CNSi-O and CNAl-O remain at about 4, the bond angle of O-Si-O remains basically unchanged, the bond angle of O-Al-O increases from 103.50° to 106.37°;the agglomeration degree of the system decreases, manifesting as a rise of the amount of non-bridging oxygen per tetrahedral-coordinated atom (NBO/T) from 1.68 to 3.72, and the viscosity decreases from 0.48 Pa·s to 0.12 Pa·s.
Key words:  copper slag    melt structure    matte smelting    slag matte separation    viscosity    molecular dynamics simulation
出版日期:  2025-11-25      发布日期:  2025-11-14
ZTFLH:  TF811  
基金资助: 国家自然科学基金(52364040);江西省自然科学基金(20232BAB214037)
通讯作者:  *范鹤林,博士,江西理工大学冶金工程学院副教授、硕士研究生导师。目前主要从事高温合金制备、有色金属低碳绿色智能冶金、冶金熔体及物化性质等方面的研究。fanhelin0216@163.com   
作者简介:  付芳忠,江西理工大学冶金工程学院硕士研究生,在范鹤林副教授的指导下开展熔体结构及输运性质方面的研究。
引用本文:    
付芳忠, 叶昊辉, 胡金, 姚明灿, 林嘉豪, 谢博毅, 范鹤林, 王瑞祥, 徐志峰. Fe/SiO2质量比对FeO-SiO2-Al2O3体系熔体黏度的影响机制[J]. 材料导报, 2025, 39(22): 24110073-6.
FU Fangzhong, YE Haohui, HU Jin, YAO Mingcan, LIN Jiahao, XIE Boyi, FAN Helin, WANG Ruixiang, XU Zhifeng. Principle of How Fe/SiO2 Mass Ratio Influences Melt Viscosity of FeO-SiO2-Al2O3 System. Materials Reports, 2025, 39(22): 24110073-6.
链接本文:  
https://www.mater-rep.com/CN/10.11896/cldb.24110073  或          https://www.mater-rep.com/CN/Y2025/V39/I22/24110073
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