四水硫酸锆热分解反应的程序升温动态分析  

Study on the Decompostition of Zirconium Sulfate Tetrahydrate with Temperature Programmed Techniques

作　　者：李峰[1] 何静[1] 张保国[1] 孙鹏[1] 段雪[1] 王作新[1] 

机构地区：[1]北京化工大学应用化学系

出　　处：《北京化工大学学报（自然科学版）》1996年第2期58-61,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：利用程序升温分解（ＴＰＤＥ）及热重－差热分析（ＴＧ－ＤＴＡ）这两种程序升温动态分析手段，对四水硫酸锆结晶水的结合特征及热分解动力学行为进行了效详细的研究。分析了结晶水与硫酸锆的结合形态，并对四水硫酸锆在程序升温过程中的动力学行为及分解反应机理进行了探讨。The binding morphology of crystal water with zirconium sulfate in the structure of tetrahydrate and the kinetic behavior of decomposition of zirconium sulfate have been investigated by means of temperature programmed decomposition (TPDE) and thermogravimetry differential thermal analysis (TG-DTA). It is illustrated that the crystal water is linked to Zr(SO4)2 by complicated modes, and Zr(SO4)2·4H2O is dehydrated by three steps during the decomposition. In addition, by correlating the results from TPDE and TG-DTA, the decomposition mechanism is also discussed.

关 键 词：结晶水 四水硫酸锆 分解 程序升温 硫酸锆 

分 类 号：O614.412[理学—无机化学]