摘要
用非等温热重法测定了硫酸铵及硫酸铵与氯化钾体系的热分解动力学参数，实验数据以Ｃｏａｔｓ－Ｒｅｄｆｅｒｎ法处理得到硫酸铵第一步反应的活化能为Ｅ＝１２２．９ｋＪ／ｍｏｌ，频率因子Ａ＝６．６９５×１０９Ｓ－１，第二步反应的活化能为１９５３ｋＪ／ｍｏｌ，频率因子Ａ＝１．３５９×１０１３Ｓ－１；硫酸铵与氯化钾体系第一步反应的活化能为６５３３ｋＪ／ｍｏｌ，频率因子Ａ＝３．０２３×１０４Ｓ－１，第二步反应的活化能为１９１５ｋＪ／ｍｏｌ，频率因子Ａ＝２．９８２×１０１５Ｓ－１。
The kinetic parameters of the thermal decomposttion of (NH 4) 2SO 4 and 2KCl+(NH 4) 2SO 4 were studied under non-isothermal condition by TG. The data was treated by means of Coats-Redfern method. The results were shown below (where E is activation energy, A is frequeney factor): (NH 4) 2SO 4 first step: E=122.9 kj/mol; A=6.695×10 9S -1 second step: E=195 3 kj/mol; A=1.359×10 13 S -1 2KCl+(NH 4) 2SO 4 first step: E=65 33 kj/mol;A=3.023×1...
出处
《安徽机电学院学报》
1999年第1期57-60,共4页
Journal of Anhui Institute of Mechanical and Electrical Engineering
关键词
热分析
硫酸铵
硫酸钾
氯化钾
thermal analysis
ammonium sulfate
potassium sulfate
potassium Chloride
