Direct chromium alloying by chromite ore with the presence of metallic iron
Direct chromium alloying by chromite ore in EAF operation is a promising process in stainless steel production, which has the advantage of resource-saving, energy-saving, and environment-friendly. In the present investigation, iron, carbon, and chromite ore mixture (Fe+C+FeCr2O4) were chosen as...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Belgrade, Technical Faculty, Bor
2013-01-01
|
| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2013/1450-53391300015H.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832570995785859072 |
|---|---|
| author | Hu X. Wang H. Teng L. Seetharaman S. |
| author_facet | Hu X. Wang H. Teng L. Seetharaman S. |
| author_sort | Hu X. |
| collection | DOAJ |
| description | Direct chromium alloying by chromite ore in EAF operation is a promising process in stainless steel production, which has the advantage of resource-saving, energy-saving, and environment-friendly. In the present investigation, iron, carbon, and chromite ore mixture (Fe+C+FeCr2O4) were chosen as the precursor for direct chromium alloying. Thermogravimetric Analysis (TGA) experiments were carried out to investigate the effect of iron content on the reduction kinetics, and the results show that the presence of metallic iron in the precursor will increase the reduction rate of chromite. Up-scaling experiments (100 g and 500 g scale) have been carried out in the induction furnace to further test the effectiveness of using industrial chromite ore for direct chromium alloying. The induction furnace tests confirmed the necessity of adjusting composition of the slags to ensure high yield of chromium in the final products; and chromium yield can reach 90%. |
| format | Article |
| id | doaj-art-e2a0fff8489f4c64a52fdf75752aa960 |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-e2a0fff8489f4c64a52fdf75752aa9602025-02-02T13:24:23ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392013-01-0149220721510.2298/JMMB120815015HDirect chromium alloying by chromite ore with the presence of metallic ironHu X.Wang H.Teng L.Seetharaman S.Direct chromium alloying by chromite ore in EAF operation is a promising process in stainless steel production, which has the advantage of resource-saving, energy-saving, and environment-friendly. In the present investigation, iron, carbon, and chromite ore mixture (Fe+C+FeCr2O4) were chosen as the precursor for direct chromium alloying. Thermogravimetric Analysis (TGA) experiments were carried out to investigate the effect of iron content on the reduction kinetics, and the results show that the presence of metallic iron in the precursor will increase the reduction rate of chromite. Up-scaling experiments (100 g and 500 g scale) have been carried out in the induction furnace to further test the effectiveness of using industrial chromite ore for direct chromium alloying. The induction furnace tests confirmed the necessity of adjusting composition of the slags to ensure high yield of chromium in the final products; and chromium yield can reach 90%.http://www.doiserbia.nb.rs/img/doi/1450-5339/2013/1450-53391300015H.pdfdirect alloyingchromite orestainless steelthermogravimetric analysis |
| spellingShingle | Hu X. Wang H. Teng L. Seetharaman S. Direct chromium alloying by chromite ore with the presence of metallic iron Journal of Mining and Metallurgy. Section B: Metallurgy direct alloying chromite ore stainless steel thermogravimetric analysis |
| title | Direct chromium alloying by chromite ore with the presence of metallic iron |
| title_full | Direct chromium alloying by chromite ore with the presence of metallic iron |
| title_fullStr | Direct chromium alloying by chromite ore with the presence of metallic iron |
| title_full_unstemmed | Direct chromium alloying by chromite ore with the presence of metallic iron |
| title_short | Direct chromium alloying by chromite ore with the presence of metallic iron |
| title_sort | direct chromium alloying by chromite ore with the presence of metallic iron |
| topic | direct alloying chromite ore stainless steel thermogravimetric analysis |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2013/1450-53391300015H.pdf |
| work_keys_str_mv | AT hux directchromiumalloyingbychromiteorewiththepresenceofmetalliciron AT wangh directchromiumalloyingbychromiteorewiththepresenceofmetalliciron AT tengl directchromiumalloyingbychromiteorewiththepresenceofmetalliciron AT seetharamans directchromiumalloyingbychromiteorewiththepresenceofmetalliciron |