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| Study on Simultaneous Production of Reduced Iron and Bonding Component from Nickel Slag |
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Received:June 25, 2015
Revised:June 29, 2015
Accepted:July 01, 2015
Published Online:November 18, 2015
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| DOI：doi：10.3969/j.issn.1007-7545.2015.12.014 |
| KeyWord:nickel slag; direct reduction; cementing material |
| Author | Institution |
| LI Xiao-ming |
西安建筑科技大学冶金工程学院 |
| XIE Geng |
西安建筑科技大学冶金工程学院 |
| ZHAO Jun-xue |
西安建筑科技大学冶金工程学院 |
| CUI Ya-ru |
西安建筑科技大学冶金工程学院 |
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| Abstract: |
| Direct reduction iron and bonding component such as tricalcium silicate (C3S) and dicalcium silicate (C2S) were simultaneously produced from nickel slag by controlling reaction temperature and matching. The effects of carbon dosage, reduction temperature, reduction time, calcium oxide addition, and heating model on experiments were investigated. The results show that iron and cementing material (C3S and C2S) can be simultaneously produced by two-stage heating model, i.e., when reduced at 1 000 ℃ for 40 min firstly and then reduced at 1 480 ℃ for 90 min. Iron recovery rate is 72%, and C3S in cementing material is 55%. |
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