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| Study on Improving Ti-grade in Ilmenite of Low Grade Titanium Slag with Hydrothermal Recrystallization |
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Received:September 28, 2015
Revised:October 09, 2015
Accepted:October 12, 2015
Published Online:February 23, 2016
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| DOI：10.3969/j.issn.1007-7545.2016.03.006 |
| KeyWord:Ti-bearing slag; hydrothermal recrystallization; ilmenite |
| Author | Institution |
| Mao Xiaoyong |
昆明理工大学冶金与能源工程学院 |
| Wu Wei |
昆明理工大学冶金与能源工程学院 |
| Zhu Yun |
昆明理工大学冶金与能源工程学院 |
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| Abstract: |
| Ti-bearing electroslag was hydrothermal recrystallized in FeSO4-Fe2(SO4)3-H2SO4 solution and then separated by gravity separation. Effects of concentration of FeSO4 and Fe2(SO4)3, pH, temperature of hydrothermal reaction, and holding time on TiO2 content in ilmenite concentrates were investigated. The results show that TiO2 content in ilmenite concentrates rises from 41.92% to 49.74% under the optimum conditions including concentration of FeSO4 of 0.60 mol/L, concentration of Fe2(SO4)3 of 0.14 mol/L, pH value of 2, temperature of hydrothermal reaction of 150 ℃, and holding time of 3.5 h. |
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