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用 TiCl_4对脱铝丝光沸石进行同晶取代并经(NH_4)_2SO_4溶液促进,制成沸石型固体超强酸。氨吸附 TPD 和常温下正丁烷异构化反应表明,所制备的沸石型固体超强酸其酸强度和酸量大于典型的卤素系列固体超强酸 SbF_5-Al_2O_3-SiO_2。
TiCl 4 is used to carry out isomorphous substitution on the dealuminated mordenite and promoted by (NH 4) 2 SO 4 solution to form a zeolite solid superacid. Ammonia adsorption TPD and n-butane isomerization at room temperature showed that the strength and acidity of zeolite-type solid superacids were higher than that of typical solid superacid SbF_5-Al_2O_3-SiO_2.