碱式碳酸锌在二氧化碳气氛下的热分解动力学

碱式碳酸锌在二氧化碳气氛下的热分解动力学

刘艳华¹,赵旭¹,周兵¹,马兵²,王子忱¹

（1.　吉林大学化学学院，长春　130021； 2.　松原市重点项目办公室，吉林省　松原　138000）

收稿日期:2005-03-07 修回日期:1900-01-01 出版日期:2005-09-26 发布日期:2005-09-26
通讯作者: 王子忱

Kinetics of Thermal Decomposition of Basic Zinc Carbonate in CO₂ Atmosphere

LIU Yan-hua¹,ZHAO Xu¹,ZHOU Bing¹,MA Bing²,WANG Zi-chen¹

(1. College of Chemistry, Jilin University, Changchun 130021, China； 2. Songyuan Key Projects Office， Songyuan　138000， Jilin Province, China)

Received:2005-03-07 Revised:1900-01-01 Online:2005-09-26 Published:2005-09-26
Contact: WANG Zi-chen

摘要/Abstract

摘要： 运用TG/SDTA同步分析仪，研究了碱式碳酸锌在流动二氧化碳气氛中的热分解过程及热分解动力学. 探讨了加热速率对反应过程的影响. 采用Friedman法对实验数据进行分析，结果表明，反应的活化能数值随着分解率的不同而变化，由此推断该反应是由多步反应组合而成的，其平均表观活化能E_a为286.84 kJ/mol.

关键词: 碱式碳酸锌, 热分解动力学, 活化能

Abstract: Dynamic kinetic analyses were performed for the thermal decomposition of basic zinc carbonate by means of TG and SDTA measurements in CO₂. The thermal behavior and the kinetics of the decomposition were studied. The effect of heating rate on the kinetics was investigated. To estimate the activation energy of the decomposition, the Friedman isoconversional method was applied. The activation energy (E_a) was calculated as a function of conversion (α). The results confirm that more than one reaction occurs in the decomposition of basic zinc carbonate. The activation energy obtained in CO₂ atmosphere is 286.84 kJ/mol.

Key words: basic zinc carbonate, decomposition kinetics, activation energy

中图分类号:

TK16

刘艳华,赵旭,周兵,马兵,王子忱. 碱式碳酸锌在二氧化碳气氛下的热分解动力学[J]. J4, 2005, 43(05): 680-682.

LIU Yan-hua,ZHAO Xu,ZHOU Bing,MA Bing,WANG Zi-chen. Kinetics of Thermal Decomposition of Basic Zinc Carbonate in CO₂ Atmosphere[J]. J4, 2005, 43(05): 680-682.

[1]	马宏源, 姜春旭, 庄严, 李冰, 孙永清, 杨晓翠, 王佐成. 水环境下羟自由基致Asp分子损伤机理[J]. 吉林大学学报(理学版), 2019, 57(5): 1246-1254.
[2]	潘宇, 高峰, 王野, 李冰, 杨晓翠, 王佐成. 苯丙氨酸分子的手性对映体转变机理及水分子（簇）的催化作用[J]. 吉林大学学报(理学版), 2019, 57(06): 1519-1529.