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| Extraction of Aluminum Oxide from Bauxite Ore by Roasting Ammonium Sulfate |
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Received:June 09, 2014
Revised:June 11, 2014
Accepted:June 13, 2014
Published Online:June 28, 2015
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| DOI： |
| KeyWord:Bauxite; Ammonium Sulfate; Alumina; Iron oxide; Roasting condition |
| Author | Institution |
| LIU Jia-nan |
School of Materials & Metallurgy, Northeastern University |
| ZHAI Yu-chun |
School of Materials & Metallurgy, Northeastern University |
| jiazhiliang |
School of Materials & Metallurgy, Northeastern University |
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| Abstract: |
| Employing bauxite ore and ammonium sulfate raw materials , Al3 and Fe3 were extracted from bauxite ore by the method of ammonium sulfate roasting. The optimum technological conditions, which could guarantee the extraction of Al3 more than 98% and the extraction of Fe3 more than 88%,were figure out through single-factor experiment to be: molar ratio of ammonium sulfate-to-bauxite 4.4,reaction temperature of low 300℃, reaction time 60min; reaction temperature of high 450℃, reaction time 60min.To make the aluminum, iron, silicon which in the bauxite had been separated effectively. |
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