Abstract: The present situation of synthesis of aramides by catalytic hydrogenation was reviewed. The preparation of Pd-Fe/SiO₂ catalyst by the dipping process is introduced. Factors affecting catalytic properties，such as carrier，components，reductant，baking temperature，and time，were studied，and optimal conditions were obtained as：w(Pd)=5%，w(Fe)=0.2%; potassium borohydride as reductant; Pd-Fe/ SiO₂ was roasted for 4 h at 500 ℃. Tests for reusing the catalyst，verifying optimal conditions，and comparing with other catalysts such as Raney Ni，Pt/C，and Pd/C were made. The results showed that Pd-Fe/ SiO2 catalyst had high selectivity，the yield of the reaction was more than 97.5%，the purity of product was more than 98.0%，and the catalyst can be reused 10 times .

摘要： 介绍了以浸渍法制备Pd-Fe/SiO₂催化剂，研究其载体、金属组分、还原剂、焙烧温度和时间等因素对催化剂催化性能的影响。确定了最优工艺条件：w（Pd）=5%，w（Fe）=0.2%，硼氢化钾作还原剂，焙烧温度500 ℃，焙烧时间4 h。重复使用试验、优化验证试验、与其它催化剂如Raney Ni、Pt/C和Pd/C等对比试验结果表明，Pd-Fe/SiO₂催化剂用于含氟芳香族硝基化合物的常压催化加氢反应，收率大于97.5%，纯度达到98.0%以上，选择性好，催化剂可重复使用10次。