|
|
|
| Study of Nonisothermal Crystallization Kinetics of Amorphous BF Slag |
| DAI Xiaotian,GUO Peimin,QI Yuanhong,ZHANG Chuanxia,YAN Dingliu,XU Haichuan |
| State Key Laboratory of Advanced Steel Processing and Products, China Iron and Steel Research Institute Group, Beijing 100081, China |
|
|
|
|
Abstract The crystallization reaction of amorphous BF slag was studied by DSC at different heating rate. Based on the dynamic DSC curves, the apparent activation energy, reaction orders and the preexponential factor for kinetic equation of the reaction were calculated, and the kinetic equation of the crystallization reaction of amorphous BF slag was derived finally. For the test slag, the apparent activation energy was 376.466 kJ/mol and the reaction order was 1. The DSC curves show that exothermic peaks were between 11301310 K.The peak temperature, crystallization temperature and reaction order were increased with the heating rate.A mathematic model was established to describe the crystallization reaction of amorphous BF slag.
|
|
Received: 01 January 1900
|
|
|
|
| [1] |
LÜ Xue-wei, YAN Zhi-ming, PANG Zheng-de, BAI Chen-guang, LIANG Dong, XIE Hao. Effect of Al2O3 on physicochemical properties and structure of blast furnace slag: review[J]. Iron and Steel, 2020, 55(2): 1-10. |
| [2] |
ZHANG Jun, YAN Ding-liu, WAN Xin-yu, GAO Jian-jun. Comparative test on different dry granulation methods of blast furnace slag[J]. Iron and Steel, 2020, 55(2): 139-143. |
| [3] |
LI Shan-hong1,2,LI Li-jun1,2,LI De-ren2,LU Zhi-chao2. Effect of magnetic annealing on magnetostrictive properties of Fe80Si9B11 amorphous alloys[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(9): 854-858. |
| [4] |
LIU Zhe,WANG Yi-ci,ZHAO Feng-guang,LUO Guo-ping,ZHAO Bin. Influence of binary basicity on physical properties of blast furnace slag of Baogang Group[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(8): 696-701. |
| [5] |
YAO Jia-bin,LIU Weguo,JU Jiantao,XING Xiangdong,AN Jialiang. Study on desulphurization capacity of CaO-SiO2-MgO-Al2O3-BaO slag systems[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(3): 280-286. |
| [6] |
LIN Yin-he1， FU Ya-ling1， LUO Lin-gen2， ZHANG Li-qiang3，. Effect on B2O3 replacing CaF2 of high Ti-bearing blast furnace slag[J]. Iron and Steel, 2019, 54(2): 26-30. |
|
|
|
|
2008, Vol. 43 
