|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Selective Recovery of P and Mn from Steelmaking Slag by Carbothermic Reduction
||Shin-ya Kitamura, Dong Jun Shin, Xu Gao, Shigeru Ueda
|On-Site Speaker (Planned)
Steelmaking slag contains useful elements such as P and Mn. Generally, by the carbothermic reduction of slag, not only P but also Mn is reduced and Fe-P-Mn alloy is formed. In this study, the selective recovery of P and Mn from steelmaking slag by the carbothermic reduction was investigated. A mixture of the synthesized slag and graphite was heated at various temperature, and the compositions of separated slag and metal were analyzed. The results showed that with a decrease in basicity, and the increase in temperature the reduction of P was enhanced but that of Mn was suppressed. Thus, under the optimum condition, steelmaking slag was separated to the Fe-P alloy and high MnO containing slag. The formed alloy and slag can be used as raw materials of fertilizer and Fe-Mn alloy, respectively. In this paper, concept of this process and the results of the fundamental experiments will be shown.