佛石催化剂中引入第Ⅷ族过渡金属后,可以明显地改善其催化活性.用浸渍交换法制备含Fe的沸石时,Fe含量较高则有可能形成多磁畴的物相.为使Fe能够较均匀地分散在样品的骨架中,丁莹如等合成了硅铁沸石催化剂;并用XRD和Mossbauer谱法进行了研究.结果证明,这种合成含铁沸石样品中的Fe~(3+)主要分布于晶格骨架中,它是一种结构上类似于丝光沸石的硅铁沸石.同时还发现,合成的样品经酸洗、氢气还原等处理 The introduction of Group VIII transition metal into the Fossil catalyst can obviously improve its catalytic activity.When the Fe-containing zeolite is prepared by impregnation exchange method, it is possible to form multimagnetic domains when the content of Fe is higher, The results showed that the main Fe 3+ in the samples was confirmed by XRD and Mossbauer spectroscopy. Distributed in the lattice framework, it is a structure similar to Mordenite zeolite.At the same time also found that the synthesis of the sample by pickling, hydrogen reduction and other treatment