Selective recovery of P and Mn from steelmaking slag by carbothermic reduction

Dong Jun Shin, Xu Gao, Shigeru Ueda, Shin Ya Kitamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Steelmaking slag contains useful elements such as P and Mn. Generally, in the carbothermic reduction of slag, not only P but also Mn are reduced and a Fe–P–Mn alloy is formed. In this study, the possibility of the separation of Mn and P was investigated. A mixture of synthesized slag and graphite was heated at 1773, K, and the compositions of the separated slag and metal were analyzed. The results showed that with a decrease in basicity, the reduction of P was enhanced but that of Mn was suppressed. Thus, under an optimum condition, steelmaking slag was separated into a Fe–P alloy and a high MnO-containing slag. Although further investigation is necessary, the formed alloy and slag could be used as raw materials for fertilizers and Fe–Mn alloys, respectively. This paper elucidates the concept of this process and the results of the fundamental experiments.

Original languageEnglish
Title of host publication9th International Symposium on High-Temperature Metallurgical Processing
EditorsEnder Keskinkilic, Zhiwei Peng, Mark William Kennedy, Jiann-Yang Hwang, Onuralp Yucel, Jerome P. Downey, Shijie Wang, Rafael Padilla, Baojun Zhao, Dean Gregurek, Tao Jiang
PublisherSpringer International Publishing
Pages305-311
Number of pages7
ISBN (Print)9783319721378
DOIs
Publication statusPublished - 2018 Jan 1
Event9th International Symposium on High-Temperature Metallurgical Processing organized in conjunction with the Annual Meeting and Exhibition, TMS 2018 - Phoenix, United States
Duration: 2018 Mar 112018 Mar 15

Publication series

NameMinerals, Metals and Materials Series
VolumePart F10
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Other

Other9th International Symposium on High-Temperature Metallurgical Processing organized in conjunction with the Annual Meeting and Exhibition, TMS 2018
CountryUnited States
CityPhoenix
Period18/3/1118/3/15

Keywords

  • Extract
  • Manganese
  • Phosphorus
  • Recycle
  • Steelmaking slag

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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  • Cite this

    Shin, D. J., Gao, X., Ueda, S., & Kitamura, S. Y. (2018). Selective recovery of P and Mn from steelmaking slag by carbothermic reduction. In E. Keskinkilic, Z. Peng, M. W. Kennedy, J-Y. Hwang, O. Yucel, J. P. Downey, S. Wang, R. Padilla, B. Zhao, D. Gregurek, & T. Jiang (Eds.), 9th International Symposium on High-Temperature Metallurgical Processing (pp. 305-311). (Minerals, Metals and Materials Series; Vol. Part F10). Springer International Publishing. https://doi.org/10.1007/978-3-319-72138-5_31