| 无水醋酸锌与无水草酸固相反应动力学的研究 |
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| 引用本文： | 唐定兴,汪礼胜,江志祥.无水醋酸锌与无水草酸固相反应动力学的研究[J].安徽工程科技学院学报,2001,16(1):32-35. |
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| 作者姓名： | 唐定兴 汪礼胜 江志祥 |
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| 作者单位： | 安徽机电学院生物化学工程系, |
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| 基金项目： | 安徽省教育厅自然科学基金;99jl0033; |
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| 摘 要： | 用等温热重法研究了无水醋酸锌与无水草酸的固相化学反应，反应分2步进行，通过对转化率数据α进行动力学拟合得到了反应的动力学方程.转化率α较低时发生第一步反应，动力学方程(1－α)－1/2=Ae－E/RTt式中E=70.72kJ/mol、A=4.43×108min－1；转化率α较高时发生第二步反应，动力学方程(1－2α/3)－(1－α)2/3=Ae－E/RTt式中E=122.7kJ/mol、A=9.81×1014min－1.
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| 关 键 词： | 固相反应 动力学 动力学参数 等温热分析 |
| 文章编号： | 1007－5240(2001)01－0032－04 |
| 修稿时间： | 2000年7月25日 |
The kinetics of the solid state reaction between Zn(CH3COO)2 and H2C2O4 |
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| TANG Ding-xing, WANG Li-sheng,JIANG Zhi-xiang.The kinetics of the solid state reaction between Zn(CH3COO)2 and H2C2O4[J].Journal of Anhui University of Technology and Science,2001,16(1):32-35. |
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| Authors: | TANG Ding-xing WANG Li-sheng JIANG Zhi-xiang |
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| Abstract: | The solid state reaction between Zn(CH3COO)2 andH2C2O4 underisothermal condition was studied by TG. The reaction was described by two steps. Their kinetic expressions were obtained by treating the fraction α of conversion with different mechanism functions g(α ). The first step was carried out with a small α , its kinetic expression is (1－ α )－1/2=Ae－E/RTt where E=70.72 kJ/mol and A=4.43× 108 min－1; the second step was carried out with a large α , its kinetic expression is (1－2α/3)－ (1－α )2/3=Ae－E/RTt where E=122.7 kJ/mol and A=9.81× 1014 min－1. |
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| Keywords: | solid state reaction kinetics kinetic parameters isothermal analysis |
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