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| Study on extracting of titanium from titania slag by ammonium sulfate roasting |
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Received:July 16, 2015
Revised:July 21, 2015
Accepted:July 22, 2015
Published Online:April 28, 2016
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| DOI： |
| KeyWord:ammonium sulfate; roasting; titanium slag |
| Author | Institution |
| Li-Li Sui |
Shenyang Medical College,department of chemistry |
| Zhai Yu-chun |
School of Materials and Metallurgy, Northeastern University |
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| Abstract: |
| Through single factor experiments, the effects of roasting temperature, mass ratio of ammonium sulfate to ore, material particle size, and roasting time on the extracting rate of titanium slag were investigated. The results of orthogonal experiments showed that the sequence of each factor affecting the extraction ratio of titania is roasting temperature﹥roasting time﹥mass ratio of ammonium sulfate to ore. The optimum technological conditions are obtained as mass ratio of ammonium sulfate to ore of 5:1, roasting temperature of 470℃, roasting time of 80min and material particle size of 45～49μm. The extraction ratio of TiO2 is about 80% under the optimum conditions. |
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