| Na_2O-Al_2O_3-SiO_2-H_2O体系生成水化石榴石的非等温动力学 |
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| 引用本文： | 朱小峰,张廷安,李晓琪,吕国志,潘璐. Na_2O-Al_2O_3-SiO_2-H_2O体系生成水化石榴石的非等温动力学[J]. 有色金属(冶炼部分), 2015, 0(11): 47-50 |
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| 作者姓名： | 朱小峰 张廷安 李晓琪 吕国志 潘璐 |
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| 作者单位： | 东北大学 材料与冶金学院,东北大学 材料与冶金学院,东北大学 材料与冶金学院,东北大学,中国恩菲工程技术有限公司 |
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| 基金项目： | 国家自然科学基金联合基金重点项目(U1202274)；国家自然科学基金青年基金项目(51204040) |
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| 摘 要： | 利用高压DSC(HP-DSC)研究了Na2O-Al2O3-SiO2-H2O体系中生成水化石榴石的反应动力学。采用微分方程法对DSC曲线进行了分析,得到了该反应的动力学参数。结果表明,水化石榴石生成反应的表观活化能为191.17kJ/mol,指前因子为2.767 3s-1,其反应机理为随机成核和随后生长,并符合Mample单行法则。
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| 关 键 词： | 水化石榴石 高压DSC 动力学 活化能 |
| 收稿时间： | 2015-06-04 |
| 修稿时间： | 2015-06-09 |
Non-isothermal Generation Kinetics of Hydrogarnet in Na2O-Al2O3-SiO2-H2O System |
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| ZHU Xiao-feng,ZhANG Ting-an,LI Xiao-qi,LV Guo-zhi and PAN Lu. Non-isothermal Generation Kinetics of Hydrogarnet in Na2O-Al2O3-SiO2-H2O System[J]. Nonferrous Metals(Extractive Metallurgy), 2015, 0(11): 47-50 |
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| Authors: | ZHU Xiao-feng ZhANG Ting-an LI Xiao-qi LV Guo-zhi PAN Lu |
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| Affiliation: | Northeastern University,,,, |
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| Abstract: | Generation kinetics of hydrogarnet in Na2O-Al2O3-SiO2-H2O system was investigated by High-pressure Differential Scanning Calorimetry (HP-DSC). Kinetics parameters of reaction were obtained by analysis on DSC curves with differential equation method. The results show that the apparent activation energy and pre-exponential constant of this reaction are 191.17 kJ/mol and 2.767 3 s-1 respectively. The reaction mechanism includes random nucleation and growth in accordance with Mample single rule. |
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| Keywords: | hydrogarnet high-pressure DSC kinetics activation energy |
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