化工学报 ›› 2008, Vol. 59 ›› Issue (4): 917-919.

• 催化、动力学与反应器 • 上一篇    下一篇

热分析法研究SnSO4在催化剂制备中的分解行为

靳会杰;李燕红;任保增;孔海平;雒廷亮;刘国际   

  1. 郑州大学化工学院,河南 郑州450001
  • 出版日期:2008-04-05 发布日期:2008-04-05

Thermal decomposition of SnSO4 in catalyst preparation

JIN Huijie;LI Yanhong;REN Baozeng;KONG Haiping;LUO Tingliang;LIU Guoji   

  • Online:2008-04-05 Published:2008-04-05

关键词:

SnSO4, 热分解, 动力学, 热分析

Abstract:

SnSO4 is an important promoter of catalyst for preparing naphthalene quinone with oxidation of naphthalene by air.Its thermal decomposition kinetics in N2 was studied with NETZSCH-STA409PC thermal analyzer.SnSO4 thermal decomposition was an endothermic reaction and mainly occurred at 450-550℃.The total mass loss was 29.36%,so the reaction products were SnO2 and SO2.Kinetic function was obtained and kinetic parameters were calculated with linear regression provided by NETZSCH Instruments Co.Ltd.The correlation coefficient was 0.9997.The results showed that SnSO4 decomposition was a self-catalysis reaction and the catalyst was its reaction product.The kinetic function predicted that SnSO4 decomposition was 20% at 450℃ for 120 min and 100% at 480℃ for 106 min,and the process of catalyst preparation can be optimized.

Key words:

SnSO4, 热分解, 动力学, 热分析