|
|
|
| Desulfurization Behavior and Mechanism of CaO-saturated Slag |
| Jian-fei XU,Fu-xiang HUANG,Xin-hua WANG |
| School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China |
|
|
|
|
Abstract To develop a high-efficiency desulfurizer for the production of pipeline steel with the LD-RH-CC process, the desulfurization efficiency and mechanism of CaO-saturated slag were studied using a vacuum-induction furnace and Si-Mo electric resistance furnace. The results show that the desulfurization ability for slag with a small amount of solid CaO was highly enhanced under conditions of satisfied kinetics. The desulfurization reaction of CaO-saturated slag depended on the liquid slag rather than the solid CaO, as sulfur was not detected inside the solid CaO. The desulfurization efficiency of CaO-saturated slag was also influenced by the amount of residual liquid slag and its sulfur absorption ability. The sulfur absorption ability of CaO-CaF2 slag was analyzed to be much higher than that of CaO-Al2O3-CaF2-(SiO2) slag. Moreover, the effect of solid CaO on the desulfurization kinetics was evaluated and the application conditions of CaO-saturated slag were discussed.
|
|
Received: 14 August 2015
Published: 09 August 2016
|
|
Corresponding Authors:
Jian-Fei XU
E-mail: 452657523@qq.com
|
|
|
|
| [1] |
Hai-yan Tang*,Yong Wang,Guang-hui Wu,Peng Lan,Jia-quan Zhang. Inclusion evolution in 50CrVA spring steel by optimization of refining slag[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 879-887. |
| [2] |
Hao Li,Yan-chong Yu,,Xiang Ren,Shao-hua Zhang,She-bin Wang,,*. Evolution of Al2O3 inclusions by cerium treatment in low carbon high manganese steel[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 925-934. |
| [3] |
Zhen Cao,Shu-qi Wang*,Ke-zhi Huang,Bo Zhang,Guo-hong Wen,Qiu-yang Zhang,Lan Wang. Effect of artificial tribological layer on sliding wear behavior of H13 steel[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 943-949. |
| [4] |
Yang Yun,Qing-wu Cai,,Bao-sheng Xie,*,Shuang Li. Effect of tempering temperature on strain hardening exponent and flow stress curve of 1000 MPa grade steel for construction machinery[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 950-956. |
| [5] |
Ying Ci,*,Zhan-zhan Zhang. Simulation study on heat-affected zone of high-strain X80 pipeline steel[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 966-973. |
| [6] |
Ying-yi Zhang,Wei Lv,Xue-wei Lv,Chen-guang Bai,Ke-xi Han,Bing Song. Oxidation kinetics of ilmenite concentrate by non-isothermal thermogravimetric analysis[J]. Chinese Journal of Iron and Steel, 2017, 24(7): 678-684. |
|
|
|
|
2016, Vol. 23 
