TY - GEN
T1 - Novel technology to produce ferromanganese alloy from Steelmaktng slag
AU - Kim, Sun Joong
AU - Shibata, Hiroyuki
AU - Kitamura, Shin Ya
AU - Yamaguchi, Katsunori
N1 - Funding Information:
The authors appreciate the financial support from the Japan Society for the Promotion of Science (21360367), a Grant-in-Aid for Scientific Research (B), the Sumitomo Foundation, and the Steel Industry Foundation for the Advancement of Environmental Protection Technology.
Publisher Copyright:
© 2020 INFACON.All rights reserved.
PY - 2020
Y1 - 2020
N2 - Manganese is an important alloying element for the production of high-grade steel. In Japan, the total amount of Mn disposed of annually in steelmaking slag is close to the amount of imported Mn. Therefore, steelmaking slag can be considered as a Mn resource. Although ferromanganese alloys can be produced by the reduction of steelmaking slag, P content in the product is too high and Mn content is too low, preventing the use of these alloys for the steelmaking process. The separation of P from Mn and increase in the Mn/Fe ratio is thermodynamically possible via the formation of liquid sulfide (matte). High-purity ferromanganese alloys can be obtained by the desulfurization (oxidation) of the formed sulfide. A fundamental experiment to clarify the distributions of Fe, Mn, Ca, and P between matte and steelmaking slag was conducted, and it was found that P was not distributed in matte. Moreover, the separation of P from Mn was confirmed.
AB - Manganese is an important alloying element for the production of high-grade steel. In Japan, the total amount of Mn disposed of annually in steelmaking slag is close to the amount of imported Mn. Therefore, steelmaking slag can be considered as a Mn resource. Although ferromanganese alloys can be produced by the reduction of steelmaking slag, P content in the product is too high and Mn content is too low, preventing the use of these alloys for the steelmaking process. The separation of P from Mn and increase in the Mn/Fe ratio is thermodynamically possible via the formation of liquid sulfide (matte). High-purity ferromanganese alloys can be obtained by the desulfurization (oxidation) of the formed sulfide. A fundamental experiment to clarify the distributions of Fe, Mn, Ca, and P between matte and steelmaking slag was conducted, and it was found that P was not distributed in matte. Moreover, the separation of P from Mn was confirmed.
KW - Manganese
KW - Matte
KW - Phosphorus
KW - Recycling
KW - Steelmaking slag
KW - Sulfurization
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M3 - Conference contribution
AN - SCOPUS:85086452244
T3 - Proceedings of INFACON XIII - 13th International Ferroalloys Congress: Efficient Technologies in Ferroalloy Industry
SP - 655
EP - 662
BT - Proceedings of INFACON XIII - 13th International Ferroalloys Congress
PB - Public Association INFACON XIII
T2 - 13th International Ferroalloys Congress: Efficient Technologies in Ferroalloy Industry, 2013
Y2 - 9 June 2013 through 12 June 2013
ER -
