Nb掺杂V/TiO_(2)催化氧化萘制1,4-萘醌研究  

Study on Catalytic Oxidation of Naphthalene to 1,4-Naphthoquinone by Nb-Doped V/TiO_(2)

作　　者：姚宁 YAO Ning(Henan Qing′an Chemical High-Tech Co.,Ltd.,Zhengzhou 451150,China)

机构地区：[1]河南庆安化工高科技股份有限公司,河南郑州451150

出　　处：《河南化工》2024年第12期25-27,共3页Henan Chemical Industry

摘　　要：气-固催化氧化制备1,4-萘醌是一种重要的化学反应过程。常用的V/TiO_(2)催化剂存在催化活性不足、选择性低等问题。通过助剂Nb掺杂改性提高钒钛催化剂性能,采用H_(2)-TPR、NH_(3)-TPD等表征手段揭示了Nb对钒基催化剂的促进机制。The preparation of 1,4-naphthoquinone by gas-solid catalytic oxidation is an important chemical reaction process.The commonly used V/TiO_(2) catalysts have the problems of insufficient catalytic activity and low selectivity.The performance of vanadium-titanium catalysts is improved by Nb doping modification,and the promotion mechanism of Nb on vanadium-based catalysts is revealed by characterization methods such as H_(2)-TPR and NH_(3)-TPD.

关 键 词：萘 选择性氧化 钒基催化剂 改性 1 4-萘醌 NB 

分 类 号：TQ244.6[化学工程—有机化工]