| 硫酸铵焙烧法提钛渣碱浸提硅反应动力学 |
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| 引用本文： | 隋丽丽,马明阳,翟玉春,张俊,张大军.硫酸铵焙烧法提钛渣碱浸提硅反应动力学[J].矿产综合利用,2022,0(1):163-167. |
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| 作者姓名： | 隋丽丽 马明阳 翟玉春 张俊 张大军 |
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| 作者单位： | 1.沈阳医学院 药学院, 辽宁 沈阳 110034 |
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| 基金项目： | 2019辽宁省教育厅科学研究一般项目；;辽宁省科学技术计划项目（2017225058）； |
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| 摘 要： | 硫酸铵焙烧钛渣提钛后的滤渣中含有大量的硅，本文分析了碱浸提钛渣提硅的动力学反应过程，结果表明:该碱浸过程受克-金-布产物层固膜扩散控制，根据阿罗尼乌斯方程得到反应的表观活化能为28.91 kJ/mol，确定动力学方程式为:1+2(1-x)-3(1-x)2/3=4.8554exp－28910/( RT)]?t。
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| 关 键 词： | 硫酸铵 钛渣 二氧化硅 碱浸动力学 |
| 收稿时间： | 2020-03-25 |
Kinetics of Alkaline Leaching Process of Extractiing Silicon from the Residue of Titanium Extraction with Ammonium Sulfate Roasting |
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| Affiliation: | 1.Department of Pharmacy, Shenyang Medical College, Shenyang, Liaoning, China2.Shenyang No. 120 Middle School, Shenyang, Liaoning, China3.School of Metallurgy, Northeastern University, Shenyang, Liaoning, China |
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| Abstract: | There is a large amount of silicon in the filter residue after extracting titanium from the titanium slag roasted with ammonium sulfate. Kinetics of alkaline leaching process of extracting silicon from the residue of titanium extraction were investigated. The results show that the internal diffusion on the solid product layer is the rate-controlling step in the leaching process. According to the Arrhenius expression, the apparent activation energy for the alkaline leaching process is 28.91 kJ/mol. The kinetics equation can be expressed as 1+2(1-x)-3(1-x)2/3=4.8554exp-28910/(RT)]?t. |
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