| 氢氧化锆非等温热分解动力学研究 |
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| 引用本文： | 苏斌,彭金辉,张利波,刘秉国,段昕辉.氢氧化锆非等温热分解动力学研究[J].化工科技,2010,18(1):1-5. |
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| 作者姓名： | 苏斌 彭金辉 张利波 刘秉国 段昕辉 |
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| 作者单位： | 昆明理工大学,冶金与能源工程学院,云南,昆明,650093;昆明理工大学,非常规冶金省部共建教育部重点实验室,云南,昆明,650093 |
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| 基金项目： | 国家自然科学基金重点项目(50734007) |
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| 摘 要： | 利用TG-DTG-DSC技术研究了氢氧化锆非等温热分解过程,应用模型法和非模型法对热分解过程进行了动力学分析,建立了动力学函数,得到了氢氧化锆热分解反应机理。氢氧化锆在氮气中热分解的活化能E=71.26 kJ/mol,指前因子lgA=18.20,机理函数积分式g(α)=-ln(1-α)]4,微分式f(α)=(1-α)-ln(1-α)]-3/4,反应机理为随机成核和随后生长。
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| 关 键 词： | 氢氧化锆 非等温热分解 动力学 反应机理 |
Kinetics study of non-isothermal decomposition of Zr(OH)4 |
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| SU Bin,PENG Jin-hui,ZHANG Li-bo,LIU Bing-guo,DUAN Xin-hui.Kinetics study of non-isothermal decomposition of Zr(OH)4[J].Science & Technology In Chemical Industry,2010,18(1):1-5. |
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| Authors: | SU Bin PENG Jin-hui ZHANG Li-bo LIU Bing-guo DUAN Xin-hui |
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| Affiliation: | 1.Faculty of Metallurgical and Energy Engineering;Kunming University of Science and Technology;Kunming 650093;China;2.Key Laboratory of Unconventional Metallurgy Ministry of Education;China |
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| Abstract: | The non-isothermal pyrolysis of zirconium hydroxide was studied with the TG-DTG-DSC method in this paper.It got the dynamic function and the reaction mechanism of thermal decomposition of zirconium hydroxide.The thermal decomposition kenitics were investigated employing model fitting and non-model fitting.The activity energy for the decoposition reaction of zirconium hydroxide was determined to be E=71.26kJ/mol in nitrogen atmosphere and the pre-exponential factor of its kinetics equations was calculated to... |
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| Keywords: | Zirconium hydroxide Non-isothermal decomposition Dynamics Reaction mechanism |
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