| 贵州某高硅铝土矿焙烧预处理试验研究 |
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| 引用本文： | 罗宇智,史光大,李元坤,钟庆文,余平.贵州某高硅铝土矿焙烧预处理试验研究[J].湖南有色金属,2013,29(3):33-35,43. |
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| 作者姓名： | 罗宇智 史光大 李元坤 钟庆文 余平 |
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| 作者单位： | 中国地质科学院矿产综合利用研究所,四川成都,610041 |
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| 基金项目： | 国土资源部地质大调查项目:贵州高硫高硅中低品位铝土矿脱硅提铝技术研究 |
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| 摘 要： | 以贵州某高硅铝土矿为研究对象，开展了焙烧-预脱硅试验研究，确定了焙烧预脱硅工艺的最佳条件。在最佳条件下，SiO2的液计脱除率为80．11％，渣计为78．06％，矿物中大部分的硅被除去。预脱硅后矿物铝硅比（A／S）达23．53，预脱硅效果好，满足拜耳法生产氧化铝要求。
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| 关 键 词： | 铝土矿 焙烧 预脱硅 |
Experimental Study on Pretreatment of a High Silica Bauxite in Guizhou |
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| LUO Yu-zhi
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SHI Guang-da
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LI Yuan-kun
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ZHONG Qing-wen
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YU Ping.Experimental Study on Pretreatment of a High Silica Bauxite in Guizhou[J].Hunan Nonferrous Metals,2013,29(3):33-35,43. |
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| Authors: | LUO Yu-zhi SHI Guang-da LI Yuan-kun ZHONG Qing-wen YU Ping |
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| Affiliation: | ( Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu 610041, China) |
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| Abstract: | The optimum conditions of calcination pre-desilication process, which targeted to a high silica bauxite in Guizhou, is determined through the research on pretreatment crafts of the bauxite ore. Under the optimum conditions, the removal efficiency of the SiO2 by liquid and slag metering is 80. 11% and 78.06% , respectively. Additionally, the A1-Si ratio of the pre-desilication products is 23.53, indicating a good pre-desilication effect. Silicon in the ore can be mostly removed by the roasting-pre-desilication method on bauxite. |
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| Keywords: | bauxite calcination pre-desilication |
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