Phosphorus-containing faujasite and preparation method thereof

The invention provides phosphorus-containing faujasite and a preparation method thereof. The preparation method comprises the following step: carrying out a gas-solid phase reaction on dried sodium faujasite and mixed gas of silicon tetrachloride and phosphorus trichloride to obtain the phosphorus-containing faujasite. According to the phosphorus-containing faujasite prepared by the preparation method of the phosphorus-containing faujasite, phosphorus enters a zeolite framework, and the phosphorus-containing faujasite has the characteristics of high B acid content, high stability, high crystallinity, high silica-alumina ratio and low sodium content. 本发明提供一种含磷八面沸石及其制备方法。该制备方法包括：将干燥的钠型八面沸石与四氯化硅和三氯化磷的混合气体进行气固相反应，从而得到所述含磷八面沸石。该含磷八面沸石的制备方法制备得到的含磷八面沸石存在磷元素进入沸石骨架，该含磷八面沸石兼具高B酸含量、高稳定性、高结晶度、高硅铝比以及低钠含量的特点。