关于脱铝沸石和超稳沸石,前人已作了大量的研究工作.如 Kerr等详细论述了脱铝和超稳沸石的制备方法.Beaumont和Barthomeuf则对其催化活性以及酸量和酸强度分布进行了较多的研究.近年来在超稳沸石上负载各种金属的研究工作受到人们的重视,Scherzer等对碱土金属离子交换过的超稳Y型沸石性质进行了一系列的研究, A great deal of research work has been done on the dealumination zeolites and ultrastable zeolites, such as Kerr et al., Discussing the preparation methods of dealumination and ultrastable zeolites, and Beaumont and Barthomeuf analyzed the catalytic activity and acidity and acid strength distribution More studies have been carried out.In recent years, the research work of loading various metals on ultra-stable zeolites has received great attention. Scherzer et al. Conducted a series of studies on the properties of ultra-stable Y-type zeolites exchanged by alkaline earth metals,