摘要
采用ＴＧ－ＤＴＡ热分析技术研究氟碳铈晶体粉末的分解动力学。ＴＧ法测得反应表观活化能Ｅ＝１７７ｋＪ／ｍｏｌ，反应级数ｎ＝１．１。ＤＴＡ法测得反应表观活化能Ｅ＝１９１ｋＪ／ｍｏｌ，反应级数ｎ＝０．９。两者吻合较好，表明热分析技术在氟碳铈矿分解动力学中可以得到良好的应用。
The decomposition kinetics of bastnasite was studied by TG and DTA methods.The activition energy E of the decomposition reaction is 177kJ·mol -1 ,the reaction order n is 1.1 from TG curve. E is 191kJ·mol -1 , n is 0.9 from DTA curve. The consistent results obtained from two methods show that the thermal analysis technique can be applied to the decomposition kinetics of bastnasite.
出处
《稀土》
EI
CAS
CSCD
北大核心
1997年第2期23-26,共4页
Chinese Rare Earths
