【摘要】 由Ａｌ２Ｏ３负载碱金属氧化物制备用于环戊二烯甲基化的催化剂．通过ＴＰＤ与表面积的测定，考察不同制备方法及碱金属组成对催化剂酸碱中心强度的影响．结果表明：由混合法制备的催化剂有较强的酸中心，且混合法制备的催化剂的表面积明显大于同组成的由浸渍法制备的催化剂的表面积．负载有碱性氧化物的Ａｌ２Ｏ３催化剂中酸强度顺序为：ＭｇＯ／Ａｌ２Ｏ３＞Ｋ２Ｏ／Ａｌ２Ｏ３＞ＢａＯ／Ａｌ２Ｏ３．碱强度顺序为：Ｋ２Ｏ／Ａｌ２Ｏ３＞ＭｇＯ／Ａｌ２Ｏ３≈ＢａＯ／Ａｌ２Ｏ３．更多还原

【Abstract】 The catalyst used for the methylation of cyclopentadiene was prepared from Al 2O₃ with supported alkali oxid.The effect of different preparation method and components were determined by TPD and specific surface area.It’s shown that the catalyst prepared by mixing method have stronger acidity and bigger specific surface area than the catalyst which have same components prepared by impregranation method.The order of acidity in these catalysts is MgO/Al ₂O₃>K₂O/Al 2O₃>BaO/Al₂O₃.The order of basicity is K₂O/Al₂O₃>MgO/Al₂O₃≈BaO/Al 2O 3.更多还原