负载型催化剂HPW/SBA-15的合成及其在2-萘甲醚乙酰化反应中的应用

采用浸渍法制备了SBA-15负载磷钨酸（HPW）催化剂HPW/SBA-15（Cat），其结构和性能经XRD， IR和NH₃-TPD表征。将 Cat 应用于2-萘甲醚（1）和乙酸酐（2）的傅 克酰基化反应，考察了不同负载量的催化剂、反应时间、催化剂用量、原料摩尔比、反应温度对2-萘甲醚酰基化反应的转化率和主产物选择性的影响。结果表明:Cat₄₀ 0.05 g，反应5 h，n(1) ：n(2)=1：4，反应温度120 ℃时，1的转化率为92.59%，主产物2-甲氧基-1-萘乙酮的选择性达99.22%。

Synthesis of Supported Catalyst HPW/SBA-15 and Its Application in Acetylation Reaction of 2-Methoxynaphthalene

Catalyst HPW/SBA-15 ( Cat ) was prepared by impregnation method. The structure and thermal properties were characterized by XRD, IR and NH3-TPD. Cat was applied in Friedel-Crafts acetylation reaction of 2-methoxynaphthalene(1) with acetic anhydride(2). Effects of different loading capacity, reaction time, amount of catalyst, reactants mole ratio, reaction temperature on the conver-sion of 1 and selectivity of the main product were investigated. The results showed that the conversion of 1 was 92. 59% and the selectivity was 99. 22% under the optimum conditions ( Cat40 0. 05 g, n(1) ∶n(2) =1 ∶4, at 120 ℃ for 5 h).