煤基活性炭共价固载铁离子有机配合物催化剂的制备及其催化合成苯甲醛的研究

采用煤基活性炭为载体，通过20%稀HNO3氧化处理，先后接枝γ-胺丙基-三-乙氧基硅烷、偏苯三酸酐，络合反应，成功制备了含双羧基双齿配体配合铁铬离子催化剂，其结构通过FT-IR、SEM、XRD等手段得到确证。经初步实验评估发现，该催化剂氧化甲苯合成苯甲醛的收率最高可达16.9%，选择性达72.5%。

Preparation of Coal Based Activated Carbon Covalently Immobilized Chromium Complexes Catalyst for Synthesis of Benzaldehyde

Coal based activated carbon activated carbon was used as carrier to covalently immobilize Cr3＋complexes after 20%HNO3 oxidation treatment. New types of double carboxyl-containing bidentate ligands were subsequently synthesized by grafting the oxidized coal based activated carbon with NH2（CH2）3Si（OC2H5）, trimellitic anhydride and complexation reaction.The samples were characterized by FT-IR, SEM and XRD. The benzaldehyde yield reached 16.9% and selectivity reached 72.5% under the preliminary exploration operation conditions .