Effect of slag basicity in ferromanganese production using medium-grade manganese ore from East Java-Indonesia. Issue 2 (3rd April 2018)

• Record Type: Journal Article
• Authors: Nurjaman, Fajar; Saputra, Eka Bobby; Ferdian, Deni; Suharno, Bambang
• Is Part Of: Mineral processing and extractive metallurgy. Volume 127:Issue 2(2018)
• Page Start: 121
• Page End: 126
• Publication Date: 2018-04-03
• Subjects: Ferromanganese -- slag -- basicity -- manganese ore -- coke -- limestone -- submerged electric arc furnace; Ore-dressing -- Periodicals; Metallurgy -- Periodicals; Metallurgy; Ore-dressing; Periodicals; 669
• DOI: 10.1080/03719553.2017.1330838
• Languages: English
• ISSNs: 2572-6641

Abstract

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.