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用低温陈化和添加稀土添加剂 (硝酸镧 )的方法制备了 SO2 - 4/Zr O2 -Ti O2 固体超强酸 ,用 IR和 XRD对样品进行了表征 .并通过在 3 5℃条件下催化正丁烷异构化反应和流动指示剂法考察了 Zr和 Ti的摩尔比以及稀土添加剂对样品的酸性和催化活性的影响 . IR和 XRD谱图显示 ,该条件下制备的样品具有较多的超强酸位 ,其晶体为 Ti O2 的锐钛矿晶相结构
The solid superacid SO2-4 / ZrO2-TiO2 was prepared by aging at low temperature and adding rare earth additive (lanthanum nitrate), and the samples were characterized by IR and XRD. The catalytic activity of n-butyl Alkane isomerization reaction and flow indicator method were investigated Zr and Ti molar ratio and rare earth additives on the acidity and catalytic activity of the sample IR and XRD spectra showed that the sample prepared under this condition with more superacid Bit, its crystal is anatase crystal structure of Ti O2