Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route
The present work demonstrates the extraction of nickel from low-grade chromite overburden by using solid state reduction and direct smelting route. Goethite & Quartz are present as major phases whereas chromite, hematite were identified as minor phases in the mineral. Solid state reduction of pe...
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University of Belgrade, Technical Faculty, Bor
2020-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2020/1450-53392000007G.pdf |
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| author | Ganesh P. Kumar Dishwar R. Agrawal S. Kumar Mandal A. Sahu N. Sinha O.P. |
| author_facet | Ganesh P. Kumar Dishwar R. Agrawal S. Kumar Mandal A. Sahu N. Sinha O.P. |
| author_sort | Ganesh P. |
| collection | DOAJ |
| description | The present work demonstrates the extraction of nickel from low-grade chromite overburden by using solid state reduction and direct smelting route. Goethite & Quartz are present as major phases whereas chromite, hematite were identified as minor phases in the mineral. Solid state reduction of pellets were carried out inside a horizontal tube furnace at 1000°C, 1200°C, 1400°C for 30, 60, 90 and 120 minutes respectively with creating reducing atmosphere. Pellets of varying basicity (i.e. 0.5, 0.6, 0.7, 0.8 and 0.9) were used directly in the EAF for smelting studies. Highest percent of nickel (2%) having ~ 91% recovery were obtained in solid state reduction route for pellets which was reduced at 1400°C for 120 minute. Similar recovery (~90%) of nickel was obtained inside the ingot (0.67% Ni ) by using pellets of 0.9 basicity through smelting route. From the present investigation, it could be concluded that the solid state reduction as well as smelting routes are feasible for the recovery of nickel from low grade chromite overburden. The production of nickel pig (low grade ferronickel) could also be feasible by smelting route. |
| format | Article |
| id | doaj-art-5127f3c65cef4d1c9e2a66f975872343 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-5127f3c65cef4d1c9e2a66f9758723432025-02-02T19:44:21ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752020-01-0156222923510.2298/JMMB190908007G1450-53392000007GFeasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting routeGanesh P.0Kumar Dishwar R.1Agrawal S.2Kumar Mandal A.3Sahu N.4Sinha O.P.5Department of Central Quality, Jindal stainless ltd, Jajpur, Odisha, IndiaDepartment of Metallurgical Engineering, IIT (BHU), Varanasi, IndiaDepartment of Materials Engineering, Indian Institute of Science, Bangalore, IndiaDepartment of Metallurgical and Materials Engineering, NIT-Durgapur, IndiaDepartment of R & D, TATA Steel Limited, Jamshedpur, Jharkhand, IndiaDepartment of Metallurgical Engineering, IIT (BHU), Varanasi, IndiaThe present work demonstrates the extraction of nickel from low-grade chromite overburden by using solid state reduction and direct smelting route. Goethite & Quartz are present as major phases whereas chromite, hematite were identified as minor phases in the mineral. Solid state reduction of pellets were carried out inside a horizontal tube furnace at 1000°C, 1200°C, 1400°C for 30, 60, 90 and 120 minutes respectively with creating reducing atmosphere. Pellets of varying basicity (i.e. 0.5, 0.6, 0.7, 0.8 and 0.9) were used directly in the EAF for smelting studies. Highest percent of nickel (2%) having ~ 91% recovery were obtained in solid state reduction route for pellets which was reduced at 1400°C for 120 minute. Similar recovery (~90%) of nickel was obtained inside the ingot (0.67% Ni ) by using pellets of 0.9 basicity through smelting route. From the present investigation, it could be concluded that the solid state reduction as well as smelting routes are feasible for the recovery of nickel from low grade chromite overburden. The production of nickel pig (low grade ferronickel) could also be feasible by smelting route.http://www.doiserbia.nb.rs/img/doi/1450-5339/2020/1450-53392000007G.pdfnickel pigsolid state reductionsmeltingchromite over burdenrecovery |
| spellingShingle | Ganesh P. Kumar Dishwar R. Agrawal S. Kumar Mandal A. Sahu N. Sinha O.P. Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route Journal of Mining and Metallurgy. Section B: Metallurgy nickel pig solid state reduction smelting chromite over burden recovery |
| title | Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route |
| title_full | Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route |
| title_fullStr | Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route |
| title_full_unstemmed | Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route |
| title_short | Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route |
| title_sort | feasibility of nickel extraction from indian chromite overburden by solid state reduction and smelting route |
| topic | nickel pig solid state reduction smelting chromite over burden recovery |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2020/1450-53392000007G.pdf |
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