| 硫酸浸取高岭土中氧化铝的动力学研究 |
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| 引用本文： | 张兴法,徐超.硫酸浸取高岭土中氧化铝的动力学研究[J].合肥工业大学学报(自然科学版),2001,24(1):71-74. |
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| 作者姓名： | 张兴法 徐超 |
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| 作者单位： | 合肥工业大学 化工学院, |
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| 基金项目： | 安徽省自然科学基金资助项目! (97415 0 0 5 ) |
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| 摘 要： | 以高岭土和硫酸为原料 ,对硫酸浸取高岭土中氧化铝的反应动力学进行了研究。按照收缩未反应芯模型导出了化学反应控制的模型方程 ,并确定了化学反应控制步骤的条件。在化学反应控制条件下进行实验研究 ,结果表明反应过程符合收缩未反应芯模型。测定了反应级数和反应活化能 ,建立了反应动力学方程。
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| 关 键 词： | 高岭土 硫酸 氧化铝 动力学方程 |
| 文章编号： | 1003-5060(2001)01-0071-04 |
| 修稿时间： | 2000年6月21日 |
Research on the kinetics of alumina from kaolinite leaching in sulphuric acid |
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| ZHANG Xing-fa,XU Chao.Research on the kinetics of alumina from kaolinite leaching in sulphuric acid[J].Journal of Hefei University of Technology(Natural Science),2001,24(1):71-74. |
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| Authors: | ZHANG Xing-fa XU Chao |
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| Abstract: | In this paper, the reaction kinetics of alumina from kaolinite leaching in sulphuric acid is studied, while the feed stocks are kaolinite and sulphuric acid. According to shrinking core model, the model equation to be controlled by chemical reaction is deduced and the conditions of its steps are determined. Under the condition to be controlled by chemical reaction, the experiment is made and its result demonstrates that the reaction process is in accordance with shrinking core model. The reaction order and reaction activation energy are determined and the reaction kinetics equation is set up. |
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| Keywords: | kaolinite sulphuric acid alumina kinetics equation |
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