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Study on pyrolysis kinetics of organic montmorillonite
Author(s): 
Pages: 101-104
Year: Issue:  4
Journal: Journal of Nanjing Forestry University(Natural Science Edition)

Keyword:  有机蒙脱土热分解动力学动力学补偿效应DTA曲线形状因子;
Abstract: 用3十八烷基甲基溴化铵(TOAB)和蒙脱土(MMT)制备有机蒙脱土(OMMT),采用热重差热(TG-DTA)法研究OMMT热分解动力学.结果表明:OMMT的热分解发生在170~530℃之间,通过Agrawal积分方程线性拟合,以线性相关系数为判据,得到OMMT热分解反应的机理函数为G(a)=a-(1-a)ln(1-a),活化能E=13.62 kJ/mol,频率因子A=1.92 min-1,动力学补...
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