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| Study on Desulphurization in Iron-sinking Slag Recycling |
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Received:August 23, 2013
Revised:August 27, 2013
Accepted:August 27, 2013
Published Online:January 20, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.02.001 |
| KeyWord:bath smelting; iron-sinking slag; desulphurization; iron-enrichment; thermodynamic calculation; thermoanalysis |
| Author | Institution |
| LIU Qun |
中南大学 化学化工学院 |
| TAN Jun |
中南大学 化学化工学院 |
| CHEN Qi-yuan |
中南大学 化学化工学院 |
| LIAO Zhou |
株洲冶炼集团股份有限公司 |
| ZHANG Ping-min |
中南大学 化学化工学院 |
| Yin Zhou-lan |
中南大学化学化工学院 |
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| Abstract: |
| The effects of temperature, atmosphere and cooling on desulfurization and iron-enrichment were investigated by simulating oxidative desulfurization stage of recycling iron from iron-sinking slag by bath smelting. Thermodynamic calculation and thermoanalysis demonstrate that desulfurization temperatures of iron sulfate are 780 ℃ and 875.2 ℃, respectively, and phase transition temperatures from thermodynamic calculation are consistent with TG and DSC results. The desulfurization rate of iron-sinking slag is 99.55% and iron content is upgraded to 37.92% under the optimum conditions of furnace temperature of 1 300 ℃, oxygen atmosphere and water-quenching. |
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