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| Influence of Elements of F、K、Na on Pellet Morphology and Composition |
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Received:October 31, 2018
Revised:November 07, 2018
Accepted:November 12, 2018
Published Online:January 24, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.02.005 |
| KeyWord:pellet; alkali metal; fluorine; morphology |
| Author | Institution |
| PI Xiao-dong |
中国地质大学北京材料学院;内蒙古自治区地质调查院 |
| SUN Quan |
内蒙古包钢稀土钢板材厂 |
| HE Ming-ze |
内蒙古科技大学材料与冶金学院 |
| LUO Guo-ping |
内蒙古科技大学材料与冶金学院 |
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| Abstract: |
| Influence of K2O, Na2O, and fluoride on pellet morphology and composition was investigated by addition of K2O, Na2O and fluoride in form of potassium slate, sodium pyroxenite, and CaF2 respectively applying ores from Australia as basics iron-bearing materials as close as to Baiyunebo iron concentrate of Baotou Steel. The results show that most of slag phase is gangue, and porosity is very large. Fluorine easily reacts with related oxides and escapes as fluoride gas to increase porosity of briquetting. Low melting point compounds produced by addition of K and Na will fill in pores and reduce porosity of briquetting. |
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