Recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation
In this investigation, a pilot-scale fluidized magnetization roasting reactor was introduced and used to enhance magnetic properties of iron ore. Consequently, the effects of roasting temperature, reducing gas CO flow rate, and fluidizing gas N2 flow rate on the magnetization roasting performance we...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Technical Faculty, Bor
2018-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2018/1450-53391700050Y.pdf |
| _version_ | 1819161001024552960 |
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| author | Yu J. Han Y. Li Y. Gao P. |
| author_facet | Yu J. Han Y. Li Y. Gao P. |
| author_sort | Yu J. |
| collection | DOAJ |
| description | In this investigation, a pilot-scale fluidized magnetization roasting reactor was introduced and used to enhance magnetic properties of iron ore. Consequently, the effects of roasting temperature, reducing gas CO flow rate, and fluidizing gas N2 flow rate on the magnetization roasting performance were studied. The results indicated that the hematite was almost completely converted into magnetite by a gas mixture of 4 Nm3/h CO and 1 Nm3/h N2 at roasting temperature of 540°C for about 30 s. Under optimized conditions, a high grade concentrate containing 66.84% iron with iron recovery of 91.16% was achieved. The XRD, VSM, and optical microscopy (OM) analyses revealed that most of the hematite, except some coarse grains, was selectively converted to magnetite, and that the magnetic properties were greatly enhanced. Thus, their separation from non-magnetic gangue minerals was facilitated. |
| first_indexed | 2024-12-22T17:05:24Z |
| format | Article |
| id | doaj.art-0a0f8176e5704bfebfa065fdd7441a8c |
| institution | Directory Open Access Journal |
| issn | 1450-5339 2217-7175 |
| language | English |
| last_indexed | 2024-12-22T17:05:24Z |
| publishDate | 2018-01-01 |
| publisher | Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj.art-0a0f8176e5704bfebfa065fdd7441a8c2022-12-21T18:19:13ZengTechnical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752018-01-01541212710.2298/JMMB170711050Y1450-53391700050YRecovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separationYu J.0Han Y.1Li Y.2Gao P.3Northeastern University, School of Resources and Civil Engineering, Shenyang, ChinaNortheastern University, School of Resources and Civil Engineering, Shenyang, ChinaNortheastern University, School of Resources and Civil Engineering, Shenyang, ChinaNortheastern University, School of Resources and Civil Engineering, Shenyang, ChinaIn this investigation, a pilot-scale fluidized magnetization roasting reactor was introduced and used to enhance magnetic properties of iron ore. Consequently, the effects of roasting temperature, reducing gas CO flow rate, and fluidizing gas N2 flow rate on the magnetization roasting performance were studied. The results indicated that the hematite was almost completely converted into magnetite by a gas mixture of 4 Nm3/h CO and 1 Nm3/h N2 at roasting temperature of 540°C for about 30 s. Under optimized conditions, a high grade concentrate containing 66.84% iron with iron recovery of 91.16% was achieved. The XRD, VSM, and optical microscopy (OM) analyses revealed that most of the hematite, except some coarse grains, was selectively converted to magnetite, and that the magnetic properties were greatly enhanced. Thus, their separation from non-magnetic gangue minerals was facilitated.http://www.doiserbia.nb.rs/img/doi/1450-5339/2018/1450-53391700050Y.pdfhematitefluidized magnetization roastingmagnetitemagnetic separationmagnetic properties |
| spellingShingle | Yu J. Han Y. Li Y. Gao P. Recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation Journal of Mining and Metallurgy. Section B: Metallurgy hematite fluidized magnetization roasting magnetite magnetic separation magnetic properties |
| title | Recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation |
| title_full | Recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation |
| title_fullStr | Recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation |
| title_full_unstemmed | Recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation |
| title_short | Recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation |
| title_sort | recovery and separation of iron from iron ore using innovative fluidized magnetization roasting and magnetic separation |
| topic | hematite fluidized magnetization roasting magnetite magnetic separation magnetic properties |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2018/1450-53391700050Y.pdf |
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