| 磷尾矿中磷、镁、铁、铝在硫酸中分解速率的实验研究 |
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| 引用本文： | 黄芳,李军旗,陈义,王政.磷尾矿中磷、镁、铁、铝在硫酸中分解速率的实验研究[J].昆明理工大学学报(理工版),2010,35(1):19-23. |
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| 作者姓名： | 黄芳 李军旗 陈义 王政 |
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| 作者单位： | 贵州大学,材料与冶金学院,贵州,贵阳,550003 |
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| 基金项目： | 贵州省科学技术基金(项目编号:黔科合J字[2007]182号);;教育部春晖计划项目 |
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| 摘 要： | 用动力学的方法研究了磷矿浮选尾矿中磷、镁、铁、铝在硫酸中的转化率,以揭示他们在硫酸中分解速率的变化规律,为综合回收尾矿中镁和磷提供基础依据.研究结果表明:硫酸浓度对磷和镁的分解温度大,尾矿的分解反应属于扩散控制过程;铁铝杂质在低浓度硫酸中的分解具有负温度效应,铝杂质的溶解受硫酸浓度影响的作用大于铁杂质,在高硫酸浓度时尤为突出.
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| 关 键 词： | 磷矿 硫酸 分解速率 |
Experimental Research on Decomposition Rate of P, Mg, Fe and Al in Phosphate Tailings in Sulfuric Acid |
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| HUANG Fang,LI Jun-qi,CHEN Yi,WANG Zheng.Experimental Research on Decomposition Rate of P, Mg, Fe and Al in Phosphate Tailings in Sulfuric Acid[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2010,35(1):19-23. |
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| Authors: | HUANG Fang LI Jun-qi CHEN Yi WANG Zheng |
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| Affiliation: | Materials and Metallurgical College/a>;Guizhou University/a>;Guiyang 550003/a>;China |
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| Abstract: | The conversion rate of P,Mg,Fe and Al in the floated phosphate tailings in sulfuric acid is studied with kinetic method so as to reveal the variation law of their decomposition rate,which provides references for utilizing Mg and P in tailings comprehensively.It is shown through the results that the effect of sulfuric acid concentration on decomposition of Mg and P is bigger than the reaction temperature.The decomposition reactions of the tailing are controlled by diffusion process.It is also found that the ... |
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| Keywords: | phosphate rock sulfuric acid decomposition rate |
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