|
|||||
|
|
Removal of Sulfur from CaF2 Containing Desulfurization Slag Exhausted from Secondary Steelmaking Process by Oxidation |
|
| Authors: | Takehito Hiraki Junichi Kobayashi Satomi Urushibata Kazuyo Matsubae Tetsuya Nagasaka |
| Affiliation: | 1. Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan 2. Sumitomo Mining Co., Ltd., Tokyo, 105-8716, Japan 3. Kobe Steel Co., Ltd., Tokyo, 651-8585, Japan |
| Abstract: | The oxidation behavior of sulfur in desulfurization slag generated from the secondary steelmaking process with air has been investigated in the temperature range of 973?K to 1373?K (700?°C to 1100?°C). Although a high removal rate of sulfur is not achieved at temperatures lower than 1273?K (1000?°C) because of the formation of CaSO4, most of the sulfur is rapidly removed from slag as SO2 gas in the 1273?K to 1373?K (700?°C to 1100?°C) range. This finding indicates that the desulfurization slag generated from the secondary steelmaking process can be reused as a desulfurized flux through air oxidation, making it possible to reduce significantly the amount of desulfurization slag for disposal. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |