Smelting of low-grade saprolitic nickel ore in DC-arc furnace
Most nickel laterite smelting to produce ferronickel is carried out using an AC-arc furnace. Although the DC-arc furnace is advantageous in the smelting of fine ore, it is rarely used for nickel laterite. In this work, the effects of slag basicity and stoichiometry of reductant addition during smelt...
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University of Belgrade, Technical Faculty, Bor
2023-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300043N.pdf |
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| author | Nurjaman F. Hakim H.Z. Septiansyah B. Arham L.O. Handoko A.S. Bahfie F. Suherman I. Haryadi H. Suseno T. Sari Y. Suharno B. |
| author_facet | Nurjaman F. Hakim H.Z. Septiansyah B. Arham L.O. Handoko A.S. Bahfie F. Suherman I. Haryadi H. Suseno T. Sari Y. Suharno B. |
| author_sort | Nurjaman F. |
| collection | DOAJ |
| description | Most nickel laterite smelting to produce ferronickel is carried out using an AC-arc furnace. Although the DC-arc furnace is advantageous in the smelting of fine ore, it is rarely used for nickel laterite. In this work, the effects of slag basicity and stoichiometry of reductant addition during smelting of low-grade saprolitic nickel ore on nickel content and nickel recovery, yield, and phases of the slag were studied in detail. The smelting process was conducted in a laboratory DC-arc furnace with a a single electrode of 30 cm diameter. A 5 kg of low-grade saprolitic nickel ore (1.92 Ni-12.97 Fe), some coke as reductant, and some limestone as flux were smelted in a DC-arc furnace for about one hour. The pouring temperature of hot metal and slag was 1400-1500°C. The basicity of the quaternary slag of 0.8 and the stoichiometric carbon of 0.8 of the reductant resulted in an optimum smelting process of nickel ore in a DC-arc furnace, producing ferronickel with a Ni content of 14.59% with 92.26% recovery. |
| format | Article |
| id | doaj-art-b3e8a4b2fa334a7293384090177bacf4 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-b3e8a4b2fa334a7293384090177bacf42025-02-03T04:03:57ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752023-01-0159349750610.2298/JMMB231110043N1450-53392300043NSmelting of low-grade saprolitic nickel ore in DC-arc furnaceNurjaman F.0Hakim H.Z.1Septiansyah B.2Arham L.O.3Handoko A.S.4Bahfie F.5Suherman I.6Haryadi H.7Suseno T.8Sari Y.9Suharno B.10National Research and Innovation Agency, Research Center for Mining Technology, South Lampung, IndonesiaInsitut Teknologi Sumatera, Department of Mining Engineering, South Lampung, IndonesiaInsitut Teknologi Sumatera, Department of Mining Engineering, South Lampung, IndonesiaInsitut Teknologi Sumatera, Department of Mining Engineering, South Lampung, IndonesiaNational Research and Innovation Agency, Research Center for Mining Technology, South Lampung, IndonesiaNational Research and Innovation Agency, Research Center for Mining Technology, South Lampung, IndonesiaNational Research and Innovation Agency, Research Center for Mining Technology, South Lampung, IndonesiaNational Research and Innovation Agency, Research Center for Mining Technology, South Lampung, IndonesiaNational Research and Innovation Agency, Research Center for Mining Technology, South Lampung, IndonesiaNational Research and Innovation Agency, Research Center for Mining Technology, South Lampung, IndonesiaUniversitas Indonesia, Department of Metallurgy and Material, Depok, IndonesiaMost nickel laterite smelting to produce ferronickel is carried out using an AC-arc furnace. Although the DC-arc furnace is advantageous in the smelting of fine ore, it is rarely used for nickel laterite. In this work, the effects of slag basicity and stoichiometry of reductant addition during smelting of low-grade saprolitic nickel ore on nickel content and nickel recovery, yield, and phases of the slag were studied in detail. The smelting process was conducted in a laboratory DC-arc furnace with a a single electrode of 30 cm diameter. A 5 kg of low-grade saprolitic nickel ore (1.92 Ni-12.97 Fe), some coke as reductant, and some limestone as flux were smelted in a DC-arc furnace for about one hour. The pouring temperature of hot metal and slag was 1400-1500°C. The basicity of the quaternary slag of 0.8 and the stoichiometric carbon of 0.8 of the reductant resulted in an optimum smelting process of nickel ore in a DC-arc furnace, producing ferronickel with a Ni content of 14.59% with 92.26% recovery.https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300043N.pdfnickel lateritesmeltingdc-arc furnaceferronickel |
| spellingShingle | Nurjaman F. Hakim H.Z. Septiansyah B. Arham L.O. Handoko A.S. Bahfie F. Suherman I. Haryadi H. Suseno T. Sari Y. Suharno B. Smelting of low-grade saprolitic nickel ore in DC-arc furnace Journal of Mining and Metallurgy. Section B: Metallurgy nickel laterite smelting dc-arc furnace ferronickel |
| title | Smelting of low-grade saprolitic nickel ore in DC-arc furnace |
| title_full | Smelting of low-grade saprolitic nickel ore in DC-arc furnace |
| title_fullStr | Smelting of low-grade saprolitic nickel ore in DC-arc furnace |
| title_full_unstemmed | Smelting of low-grade saprolitic nickel ore in DC-arc furnace |
| title_short | Smelting of low-grade saprolitic nickel ore in DC-arc furnace |
| title_sort | smelting of low grade saprolitic nickel ore in dc arc furnace |
| topic | nickel laterite smelting dc-arc furnace ferronickel |
| url | https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300043N.pdf |
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