<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The effect of coke and bituminous coal on the reduction of medium-grade manganese ore in ferromanganese production was investigated. Charges of 30 kg medium grade manganese ore, 12 kg limestone and varied amounts of coke and coal were smelted in a Submerged Electric Arc Furnace (SAF) at temperatures of 1300°C to 1500°C. The composition of the ferromanganese and the slag were determined by X-Ray Fluorescence. It was found that using coke as a single reductant resulted in a 96% yield of ferromanganese which was higher than by using coal either as a single reductant or in a mixture of coal and coke. It was also found that using coke as a single reductant resulted in the lowest specific energy consumption. Using coal as reductant produced ferromanganese containing high sulfur and phosphorus.</p></abstract>

The effect of coke and bituminous coal on the reduction of medium-grade manganese ore in ferromanganese production was investigated. Charges of 30 kg medium grade manganese ore, 12 kg limestone and varied amounts of coke and coal were smelted in a Submerged Electric Arc Furnace (SAF) at temperatures of 1300°C to 1500°C. The composition of the ferromanganese and the slag were determined by X-Ray Fluorescence. It was found that using coke as a single reductant resulted in a 96% yield of ferromanganese which was higher than by using coal either as a single reductant or in a mixture of coal and coke. It was also found that using coke as a single reductant resulted in the lowest specific energy consumption. Using coal as reductant produced ferromanganese containing high sulfur and phosphorus.

Coke and coal as reductants in manganese ore smelting: An experiment

Department of Metallurgy and Materials Engineering

Research Unit for Mineral Technology, Indonesian Institute of Sciences

Mineralogia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Coke and coal as reductants in manganese ore smelting: An experiment"}

The effect of coke and bituminous coal on the reduction of medium-grade manganese ore in ferromanganese production was investigated. Charges of 30 kg medium...

Coke and coal as reductants in manganese ore smelting: An experiment

Published Online: Mar 02, 2019

Page range: 35 - 45

Received: Jul 19, 2017

Accepted: Mar 27, 2018

DOI: https://doi.org/10.2478/mipo-2018-0004

Keywords
ferromanganese, manganese ore, coke, coal, Submerged Electric Arc Furnace (SAF)

© 2018 Bambang Suharno et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Coke and coal as reductants in manganese ore smelting: An experiment

Published Online: Mar 02, 2019

Page range: 35 - 45

Received: Jul 19, 2017

Accepted: Mar 27, 2018

DOI: https://doi.org/10.2478/mipo-2018-0004

Keywordsferromanganese, manganese ore, coke, coal, Submerged Electric Arc Furnace (SAF)

© 2018 Bambang Suharno et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
ferromanganese, manganese ore, coke, coal, Submerged Electric Arc Furnace (SAF)