| 贵州某高硫铝土矿溶出性能试验研究 |
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| 引用本文： | 任少峰,张永康,刘金海,况顺达,周丰. 贵州某高硫铝土矿溶出性能试验研究[J]. 金属矿山, 2017, 0(2) |
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| 作者姓名： | 任少峰 张永康 刘金海 况顺达 周丰 |
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| 作者单位： | 1. 西南能矿集团股份有限公司,贵州 贵阳550004;遵义能矿投资股份有限公司,贵州 遵义563000;2. 中国地质科学院郑州矿产综合利用研究所,河南 郑州450006;国家非金属矿产资源综合利用工程技术研究中心,河南 郑州450006;3. 遵义能矿投资股份有限公司,贵州 遵义,563000;4. 西南能矿集团股份有限公司,贵州 贵阳,550004 |
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| 基金项目： | 贵州省科技厅社会发展科技支撑计划项目 |
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| 摘 要： | 为消除贵州某高硫铝土精矿中硫含量过高对拜耳法生产的不利影响,研究了该高硫铝土矿精矿拜耳法溶出过程中氧化铝和硫的可溶性。试验结果显示:最优溶出试验条件为溶出温度260℃、溶出时间60 min、石灰加入量7%、配料分子比1.45、Na_2O浓度230 g/L,在此试验条件下,赤泥中氧化铝含量为17.13%,硫含量为0.12%,氧化铝的相对溶出率达到97.24%,硫的溶出率为17.72%,说明该试样溶出性能良好。
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| 关 键 词： | 高硫铝土矿 溶出性能 氧化铝 硫 溶出率 |
Tests on Digestion Performance of the High-sulfur Bauxite in Guizhou |
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| Ren Shaofeng,Zhang Yongkang,Liu Jinhai,Kuang Shunda,Zhou Feng. Tests on Digestion Performance of the High-sulfur Bauxite in Guizhou[J]. Metal Mine, 2017, 0(2) |
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| Authors: | Ren Shaofeng Zhang Yongkang Liu Jinhai Kuang Shunda Zhou Feng |
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| Abstract: | To eliminate the adverse effect in Bayer pocess result from high sulfur content in bauxite. The digestion per-formance of Al2 O3 and S in high-sulfur diasporic bauxite concentrate from Guizhou was studied by Bayer process. The results showed that the optimum conditions were leaching temperature of 260 ℃,leaching time of 60 minutes,lime dosage of 7% to bauxite,caustic ratio of 1. 45,caustic alkali concentration of 230 g/L. Under the optimum conditions,Al2 O3 content in red mud was 17. 13%,the sulfur in the red mud is 0. 12%,the relative leaching rate of Al2 O3 was 97. 24%,the leaching rate of sulfur was 17. 72%. The high-sulfur bauxite was of good digestion performance. |
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| Keywords: | High-sulfur bauxite Digestion performance Al2 O3 Sulfur Leaching rate |
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