Effect of basicity on ferromanganese production from beneficiated low-grade manganese ore

Bambang Suharno, Adi Noegroho, Deni Ferdian, Fajar Nurjaman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Indonesia is known to have a large low-grade manganese ore reserve. Nevertheless, it could not be used optimally in producing ferromanganese due to their low Mn/Fe ratio. In this present study, the beneficiation process had been applied to the low-grade manganese ore. Reduction roasting was conducted to this manganese ore at 700°C for an hour and then continued with low-intensity magnetic separation. This process had improved the Mn/Fe ratio from 1.39 to 6.11. The effect of basicity on ferromanganese production from this beneficiated low-grade manganese ore had been investigated clearly in this experiment by using mini submerged arc furnace (SAF). Several basicities for 0.7 and 1.0, was used and it was controlled by the addition of limestone in this smelting process. From this experiment, the ferromanganese containing 60% Mn was obtained from smelting the beneficiated low-grade manganese ore with the optimum basicity 0.7.

Original languageEnglish
Title of host publicationProceedings of the 1st International Process Metallurgy Conference, IPMC 2016
EditorsSiti Khodijah Chaerun, Zela Tanlega Ichlas, Mohammad Zaki Mubarok
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414730
DOIs
Publication statusPublished - 20 Jan 2017
Event1st International Process Metallurgy Conference, IPMC 2016 - Bandung, West Java, Indonesia
Duration: 10 Nov 201611 Nov 2016

Publication series

NameAIP Conference Proceedings
Volume1805
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Process Metallurgy Conference, IPMC 2016
Country/TerritoryIndonesia
CityBandung, West Java
Period10/11/1611/11/16

Keywords

  • basicity
  • beneficiation
  • ferromanganese
  • low grade manganese ore
  • submerged arc furnace (SAF)

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