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Electric Arc Metallothermic Smelting of FeCr Using FeAlSiCa as a Reductant

Yerbolat Makhambetov, Zhadiger Sadyk

2025enmetallurgysmeltingferroalloysreductantFeCr

Abstract

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This study investigates the use of the complex reductant FeAlSiCa as an alternative to the conventional FeSiCr in the EAF smelting of FeCr. The smelting process using FeAlSiCa is characterized by a stable furnace operation, active discharge of metal and slag, and effective phase separation. It was found that a 20% excess of FeAlSiCa over the stoichiometric requirement leads to a sharp increase in Si content in the FeCr alloy, with approximately 85% Cr recovery into the metal. A stoichiometric amount of FeAlSiCa results in a metal with 1.5–1.6% Si content and about 80% Cr recovery. A comparable Cr recovery using FeSiCr was achieved only when applying a 20% excess of that reductant. The use of FeAlSiCa also holds promise for technological sustainability due to its low production cost and the utilization of waste materials during its synthesis.

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Cite This Work

@article{819555ec-1f17-4929-94f3-217aaa51532f,
  title={Electric Arc Metallothermic Smelting of FeCr Using FeAlSiCa as a Reductant},
  author={Yerbolat Makhambetov and Zhadiger Sadyk},
  year={2025},
  language={en}
}
TY  - JOUR
TI  - Electric Arc Metallothermic Smelting of FeCr Using FeAlSiCa as a Reductant
AU  - Yerbolat Makhambetov
AU  - Zhadiger Sadyk
PY  - 2025
LA  - en
ER  -

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