Effect of slag basicity in ferromanganese production using medium-grade manganese ore from East Java-Indonesia

Fajar Nurjaman, Eka Bobby Saputra, Deni Ferdian, Bambang Suharno

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Ferromanganese is one of the most important alloying elements in steel industries. In this work, the production of ferromanganese was carried out using three-phase submerged mini electric arc furnace. The effect of slag basicity due to the addition of a various amount of limestone as fluxing agent on this smelting process was investigated. The chemical composition of ferromanganese and slag was analysed with X-ray fluorescence. From this experiment, the optimum slag basicity was 0.8 that produced 8.2 kg of ferromanganese with 78.1% Mn, 12.7% Fe, and 8.9% Si. It resulted from 30 kg of manganese ore, 7.5 kg of cokes, and 12 kg of limestone.

Original languageEnglish
Pages (from-to)121-126
Number of pages6
JournalMineral Processing and Extractive Metallurgy: Transactions of the Institute of Mining and Metallurgy
Volume127
Issue number2
DOIs
Publication statusPublished - 3 Apr 2018

Keywords

  • Ferromanganese
  • basicity
  • coke
  • limestone
  • manganese ore
  • slag
  • submerged electric arc furnace

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