磁化焙烧冷却过程中磁铁矿氧化动力学
TD951; 针对磁化焙烧冷却过程开展了研究,考察了磁铁矿氧化反应分数和反应速率的变化规律,并采用模型匹配法进行了氧化动力学分析.结果表明:磁化焙烧冷却过程中,氧化温度对反应分数和反应速率均有着显著的影响;相同氧化时间下,反应分数和反应速率随氧化温度的升高而增加;不同氧化温度下,反应分数和反应速率随反应时间变化呈现出相同的变化规律;磁铁矿氧化过程动力学机理函数为n=4的Avrami-Erofee方程,氧化反应的表观活化能为135.2 kJ·mol,指前因子为6.19×1010 min-1....
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| Published in | 东北大学学报（自然科学版） Vol. 39; no. 12; pp. 1759 - 1763 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
东北大学 资源与土木工程学院,辽宁 沈阳,110819
01.12.2018
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-3026 |
| DOI | 10.12068/j.issn.1005-3026.2018.12.017 |
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| Abstract | TD951; 针对磁化焙烧冷却过程开展了研究,考察了磁铁矿氧化反应分数和反应速率的变化规律,并采用模型匹配法进行了氧化动力学分析.结果表明:磁化焙烧冷却过程中,氧化温度对反应分数和反应速率均有着显著的影响;相同氧化时间下,反应分数和反应速率随氧化温度的升高而增加;不同氧化温度下,反应分数和反应速率随反应时间变化呈现出相同的变化规律;磁铁矿氧化过程动力学机理函数为n=4的Avrami-Erofee方程,氧化反应的表观活化能为135.2 kJ·mol,指前因子为6.19×1010 min-1. |
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| AbstractList | TD951; 针对磁化焙烧冷却过程开展了研究,考察了磁铁矿氧化反应分数和反应速率的变化规律,并采用模型匹配法进行了氧化动力学分析.结果表明:磁化焙烧冷却过程中,氧化温度对反应分数和反应速率均有着显著的影响;相同氧化时间下,反应分数和反应速率随氧化温度的升高而增加;不同氧化温度下,反应分数和反应速率随反应时间变化呈现出相同的变化规律;磁铁矿氧化过程动力学机理函数为n=4的Avrami-Erofee方程,氧化反应的表观活化能为135.2 kJ·mol,指前因子为6.19×1010 min-1. |
| Author | 孙永升 曹越 李艳军 韩跃新 |
| AuthorAffiliation | 东北大学 资源与土木工程学院,辽宁 沈阳,110819 |
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| Author_FL | HAN Yue-xin SUN Yong-sheng LI Yan-jun CAO Yue |
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| Keywords | 磁化焙烧 等温氧化 反应速率 动力学 反应分数 |
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| Title | 磁化焙烧冷却过程中磁铁矿氧化动力学 |
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