Manganese Recovery by Silicothermic Reduction of MnO in BaO-MnO-MgO-CaF{sub 2} (-SiO{sub 2}) Slags
Journal Article
·
· Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science
The effects of reducing agent, CaF{sub 2} content, and reaction temperature upon the silicothermic reduction of MnO in the BaO-MnO-MgO-CaF{sub 2} (-SiO{sub 2}) slags were investigated. Mn recovery was proportional to Si activity in the molten alloy. Moreover, 90 pct yield of Mn recovery was obtained under 5 mass pct CaF{sub 2} content and 1873 K (1600 °C) reaction temperature. Increasing CaF{sub 2} content above 5 pct yielded little or no further increase in Mn recovery, because it was accompanied by increased slag viscosity owing to the precipitation of high melting point compounds such as Ba{sub 2}SiO{sub 4}.
- OSTI ID:
- 22857994
- Journal Information:
- Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science, Journal Name: Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science Journal Issue: 2 Vol. 49; ISSN MTBSEO; ISSN 1073-5615
- Country of Publication:
- United States
- Language:
- English
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