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Metallurgical and Materials Transactions B
Published in: Metallurgical and Materials Transactions B 2/2018

25-01-2018 | Communication

Manganese Recovery by Silicothermic Reduction of MnO in BaO-MnO-MgO-CaF2 (-SiO2) Slags

Authors: Jung Ho Heo, Joo Hyun Park

Published in: Metallurgical and Materials Transactions B | Issue 2/2018

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Abstract

The effects of reducing agent, CaF2 content, and reaction temperature upon the silicothermic reduction of MnO in the BaO-MnO-MgO-CaF2 (-SiO2) 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 CaF2 content and 1873 K (1600 °C) reaction temperature. Increasing CaF2 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 Ba2SiO4.
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Metadata
Title
Manganese Recovery by Silicothermic Reduction of MnO in BaO-MnO-MgO-CaF2 (-SiO2) Slags
Authors
Jung Ho Heo
Joo Hyun Park
Publication date
25-01-2018
Publisher
Springer US
Published in
Metallurgical and Materials Transactions B / Issue 2/2018
Print ISSN: 1073-5615
Electronic ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-018-1175-1

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