| 转炉脱磷炉渣中石灰溶解的动力学 |
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| 引用本文： | 王雨,郭戌,谢兵,刁江,王广恩.转炉脱磷炉渣中石灰溶解的动力学[J].钢铁研究学报,2011,23(5):8-10. |
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| 作者姓名： | 王雨 郭戌 谢兵 刁江 王广恩 |
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| 作者单位： | 重庆大学材料科学与工程学院,重庆,400044 |
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| 基金项目： | 重庆市科技攻关重点项目(CSTC,2008AB4018) |
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| 摘 要： | 采用旋转圆柱体法研究了石灰在FetO-SiO2-CaO-P2O5-5%MnO-5%MgO(质量分数,余同)渣系的溶解动力学.结果表明:在1 573～1 653K温度范围内,石灰在熔渣中的扩散传质是石灰溶解的限制性环节,石灰溶解活化能为160.32kJ/mol,1623K时石灰在渣中的传质系数为3.03×10-4～8.9...
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| 关 键 词： | 石灰 溶解动力学 活化能 传质系数 |
Dissolution Kinetics of Lime in the Slag of Converter Dephosphorization |
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| WANG Yu,GUO Xu,XIE Bing,DIAO Jiang,WANG Guang-en.Dissolution Kinetics of Lime in the Slag of Converter Dephosphorization[J].Journal of Iron and Steel Research,2011,23(5):8-10. |
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| Authors: | WANG Yu GUO Xu XIE Bing DIAO Jiang WANG Guang-en |
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| Affiliation: | WANG Yu,GUO Xu,XIE Bing,DIAO Jiang,WANG Guang-en(College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China) |
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| Abstract: | The dissolution kinetics of solid lime was investigated by means of the rotating cylinder method in the FetO SiO2 CaO P2O5 5%MnO 5%MgO slag. The results indicate that the dissolution of CaO is controlled by the mass transport of CaO in liquid phase at 1573-1653K. The activation energy for the dissolution rate is 16032kJ/mol, and mass transport coefficient ranges are from 303×10-4 to 897×10-4 cm/s in the slag at 1623K. The dissolution rate significantly decreases with the increase in P2O5 content. As the basicity increases, the dissolution rate increase firstly and then decrease. |
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| Keywords: | lime dissolution kinetics activation energy mass transport coefficient |
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