对于常温衍射很难区别的MZ-3、兰偏Y-80吨、兰Y-4分子筛催化剂样品,通过高温衍射仪,观察高温条件下衍射谱图的变化。试验发现,各个样品之间有明显的差异。根据这些反映微观结构的差异,可以对分子筛催化剂的微观性质进行初步的探讨,并指导下一步的研究工作。 For the sample of MZ-3, Lan-Y-Y-80t and Lan-Y-4 zeolite which are difficult to be distinguished by normal temperature diffraction, the change of the diffraction pattern under high temperature was observed by high temperature diffractometer. The test found that there was a clear difference between the various samples. According to these differences reflecting the microstructure, the microscopic properties of the molecular sieve catalyst can be preliminarily discussed and the next research work can be guided.