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| Direct Reduction of Carbon-containing Pellets from Vanadium Titanium Iron Concentrate |
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Received:January 03, 2014
Revised:January 06, 2014
Accepted:January 06, 2014
Published Online:February 25, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.03.002 |
| KeyWord:vanadium and titanium iron concentrates; reduction; metallization rate; orthogonal experiments |
| Author | Institution |
| LI Junhan |
攀枝花学院 |
| QIU Kehui |
成都理工大学 |
| YANG Shaoli |
钒钛资源综合利用四川省重点实验室（攀枝花学院） |
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| Abstract: |
| The effects of reduction temperature, mole ratio of carbon to oxygen (nC/nO) and reduction time on metallization rate of pellets were studied by orthogonal experiments and single factor experiments. The results show that the main affecting factors of metallization rate include reduction temperature, followed by nC/nO and reduction time. Under the optimum parameters of reduction time of 30 min, temperature of 1 350 ℃, nC/nO=1.25, moisture of 9%, moulding pressure of 12 MPa and content of binding agent of 0.4%, the metallization rate of reduced pellets can be improved to 91.77%, with phase composition of metallic iron. |
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