Matte-slag separation behavior as a function of iron phase reduction in copper slag
The Isa smelting furnace discharges the matte and slag in the same tapping hole. As a result, an electric furnace needs to clean the slag. In the present study, the copper slag cleaning in an electric furnace, particularly the separation of the matte from the slag during the reduction process, was i...
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| Language: | English |
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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/1450-5339/2023/1450-53392300003L.pdf |
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| author | Liu Y.-X. Wei Y.-G. Zhou S.-W. Li B. Wang H. |
| author_facet | Liu Y.-X. Wei Y.-G. Zhou S.-W. Li B. Wang H. |
| author_sort | Liu Y.-X. |
| collection | DOAJ |
| description | The Isa smelting furnace discharges the matte and slag in the same tapping hole. As a result, an electric furnace needs to clean the slag. In the present study, the copper slag cleaning in an electric furnace, particularly the separation of the matte from the slag during the reduction process, was investigated. For Fe3O4 to FeO, the foaming slag in the melt disappeared when the Fe3O4 content was less than 10%. With the formation of the metallic iron, the foaming slag formed again, hindering the sedimentation of the matte. When the anthracite dosage increased to 2.61%, the copper content in the slag increased to 9.46%. The microstructure of the slag and the existence of the metallic iron found in the slag were analyzed in detail. The results obtained in this study provide a theoretical basis for the reasonable control of the transformation of Fe3O4 during the copper slag cleaning. |
| format | Article |
| id | doaj-art-5086b9aef4b14736a3b4fa7e61c8fce0 |
| 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-5086b9aef4b14736a3b4fa7e61c8fce02025-02-03T09:40:59ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752023-01-01591273710.2298/JMMB220421003L1450-53392300003LMatte-slag separation behavior as a function of iron phase reduction in copper slagLiu Y.-X.0Wei Y.-G.1Zhou S.-W.2Li B.3Wang H.4Kunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaThe Isa smelting furnace discharges the matte and slag in the same tapping hole. As a result, an electric furnace needs to clean the slag. In the present study, the copper slag cleaning in an electric furnace, particularly the separation of the matte from the slag during the reduction process, was investigated. For Fe3O4 to FeO, the foaming slag in the melt disappeared when the Fe3O4 content was less than 10%. With the formation of the metallic iron, the foaming slag formed again, hindering the sedimentation of the matte. When the anthracite dosage increased to 2.61%, the copper content in the slag increased to 9.46%. The microstructure of the slag and the existence of the metallic iron found in the slag were analyzed in detail. The results obtained in this study provide a theoretical basis for the reasonable control of the transformation of Fe3O4 during the copper slag cleaning.https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300003L.pdfcleaningmagnetitereductionfoaming slag. |
| spellingShingle | Liu Y.-X. Wei Y.-G. Zhou S.-W. Li B. Wang H. Matte-slag separation behavior as a function of iron phase reduction in copper slag Journal of Mining and Metallurgy. Section B: Metallurgy cleaning magnetite reduction foaming slag. |
| title | Matte-slag separation behavior as a function of iron phase reduction in copper slag |
| title_full | Matte-slag separation behavior as a function of iron phase reduction in copper slag |
| title_fullStr | Matte-slag separation behavior as a function of iron phase reduction in copper slag |
| title_full_unstemmed | Matte-slag separation behavior as a function of iron phase reduction in copper slag |
| title_short | Matte-slag separation behavior as a function of iron phase reduction in copper slag |
| title_sort | matte slag separation behavior as a function of iron phase reduction in copper slag |
| topic | cleaning magnetite reduction foaming slag. |
| url | https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300003L.pdf |
| work_keys_str_mv | AT liuyx matteslagseparationbehaviorasafunctionofironphasereductionincopperslag AT weiyg matteslagseparationbehaviorasafunctionofironphasereductionincopperslag AT zhousw matteslagseparationbehaviorasafunctionofironphasereductionincopperslag AT lib matteslagseparationbehaviorasafunctionofironphasereductionincopperslag AT wangh matteslagseparationbehaviorasafunctionofironphasereductionincopperslag |