华中师范大学学报（自然科学版）2011，Vol.45Issue(3)：439-443,5.
研究碳酸钙分解反应机理及表观活化能的新方法
A new method to research the reaction mechanism and the apparent activation energy of the decomposition reaction of calcium carbonate
摘要
Abstract
The thermal decomposition process of calcium carbonate at different heating rates was investigated under pure N2 atmosphere with the thermal analysis techniques. The apparent activation energy has been derived into the rate activation energy ( Er )and the mode function activation energy (Ef(a) ) , based on the differential method. The intrinsic activation energy is determined according to the relation between the Er and the conversion ( a ), and the reaction mechanism is obtained by the Malek method. It is shown that the reaction mechanism is contracting cylinder. The apparent activation energy is equal to the intrinsic activation energy at 0. 1≤a≤0.5 . However, the apparent activation energy is a function of the conversion at 0. 5 ≤ a < 1 .关键词
热分析技术/热分解过程/表观活化能/反应机理Key words
thermal analysis techniques/ the thermal decomposition process/ the apparent activation energy/ the reaction mechanism分类
化学化工引用本文复制引用
谭广雷,郑红霞,汪琦,张松,刘忠锁..研究碳酸钙分解反应机理及表观活化能的新方法[J].华中师范大学学报（自然科学版）,2011,45(3):439-443,5.基金项目
国家自然科学基金资助项目(50974071) （50974071）
辽宁教育厅创新团队项目(2009T052). （2009T052）
