| 四氟硼酸锂的热分解动力学 |
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| 引用本文： | 崔孝玲,李世友,乌志明,周园,雒和明.四氟硼酸锂的热分解动力学[J].吉林大学学报(理学版),2009,47(6):1323-1327. |
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| 作者姓名： | 崔孝玲 李世友 乌志明 周园 雒和明 |
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| 作者单位： | 1. 兰州理工大学 石油化工学院, 兰州 730050； 2. 中国科学院 青海盐湖研究所, 西宁 810008 |
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| 基金项目： | 青海省科技项目基金，兰州理工大学科研发展基金 |
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| 摘 要： | 通过热重（TG）及微商热重曲线（DTG）分析技术研究LiBF4的非等温和等温热分解情况. 结果表明, 两种情况下得到的表观活化能Ea与反应级数n的一致性均较好. 以等温热分解所得指前因子A和按碰撞理论计算LiBF4的分子半径r, 所得结果与实验值相符, 表明LiBF4的热分解反应基本符合碰撞理论模型, 同时也验证了ln A具有较高的可信度.
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| 关 键 词： | 四氟硼酸锂（LiBF4） 热分解 非等温动力学 等温动力学 碰撞理论 |
| 收稿时间： | 2009-03-13 |
Thermal Decomposition Kinetics of LiBF4 |
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| CUI Xiao-ling,LI Shi-you,WU Zhi-ming,ZHOU Yuan,LUO He-ming.Thermal Decomposition Kinetics of LiBF4[J].Journal of Jilin University: Sci Ed,2009,47(6):1323-1327. |
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| Authors: | CUI Xiao-ling LI Shi-you WU Zhi-ming ZHOU Yuan LUO He-ming |
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| Institution: | 1. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China;2. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China |
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| Abstract: | Non-isothermal and isothermal decompositions of LiBF_4 were studied via TG-DTG method. Both the apparent activation energy E_a and the reaction order n got from both ways had good coherence. Furthermore, when the preexponential factor A got from isothermal decomposition was used to calculate the molecular radius by means of collision theory, the result is in good agreement with the test data. So the conclusion r that collision theory is suitable for LiBF_4's thermal decomposition could be gotten. In addition, this conclusion could validate the high reliability of ln A. |
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| Keywords: | lithium tetrafluoroborate ( LiBF_4 ) thermal decomposition non-isothermal kinetics isothermal kinetics collision theory |
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