The thermal decomposition process of KAI(SO4)2’ 12H2O and its kinetics has been studied by TG-DTG. By Dollimore method, D3 is defined as the second step of thermal decomposition kinetic model and its kinetic equation...The thermal decomposition process of KAI(SO4)2’ 12H2O and its kinetics has been studied by TG-DTG. By Dollimore method, D3 is defined as the second step of thermal decomposition kinetic model and its kinetic equation is da/dT = (l /P) CT '(3/2(l - a)2/3[ 1- (l - a)1/3] - 1 ). At the same time, it has been found that the apparent activation energy E increases with the increases of fraction of conversion a and the absolute temperature T, and then it shows that a linear relationship with the temperature T has been obtained.展开更多
文摘The thermal decomposition process of KAI(SO4)2’ 12H2O and its kinetics has been studied by TG-DTG. By Dollimore method, D3 is defined as the second step of thermal decomposition kinetic model and its kinetic equation is da/dT = (l /P) CT '(3/2(l - a)2/3[ 1- (l - a)1/3] - 1 ). At the same time, it has been found that the apparent activation energy E increases with the increases of fraction of conversion a and the absolute temperature T, and then it shows that a linear relationship with the temperature T has been obtained.