| 纳米级粒径超细碳酸钙热分解动力学 |
| DECOMPOSITION KINETICS OF NANO-PARTICLE CALCITE |
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| 摘要: 研究了纳米级粒径超细碳酸钙的热分解动力学。采用标准作图法和Coats and Redfern方程对非等温动态实验数据分析结果表明符合三维球对称相界面迁移机理并综合了几种方法求解动力学参数。与普通碳酸钙相比，超细碳酸钙有70～80 kJ·mol-1的表观活化能降。 |
| 关键词: 纳米碳酸钙 非等温热分解动力学 |
| 基金项目: |
| Abstract: The decomposition kinetics of nano-particle calcite is investigated using the master plot method and Coats and Redfern′s equation. It is shown that the nano-particle calcite as well as the reference calcite dissociates according to three dimensional phase boundary movement mechanism R3. Combined techniques are used to determine the kinetic parameters. A considerable diminution in activation energy Ea up to 70～80 kJ·mol-1 is observed. |
| Keywords: nano-particle clacite non-thermal decomposition kinetics |
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| 岳林海,水淼,徐铸德.纳米级粒径超细碳酸钙热分解动力学[J].无机化学学报,1999,15(2):225-229. |
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