The effect of extra framework aluminium(EFA)in ZSM 5 produced by hydrothemal treatment on zeolite structure and catalyst performance was studied by NMR and IR.

• 用固体核磁共振和红外光谱等手段，研究了ZSM－5沸石经水热焙烧产生的非骨架铝对沸石结构性能和催化性能的影响。 结果表明，水热焙烧产生的非骨架铝通过氟硅酸洗涤可部分除去；