After determination of optimum process condations,reaction dynamics behavior was analysed and reaction meachanism was concluded by thermal analysis methods,such as TG-DTA.

• 在确立较佳工艺条件后,用热重-差热法分析硫酸分解稀土精矿的反应动力学行为,推断其反应机理,计算反应活化能、反应级数、频率因子等。