【作者】 刘自力； 贾太轩； 陈胜洲； 李树华； 张官云；

【Author】 LIU Zili1,2* ,JIA Taixuan1,2 ,CHEN Shengzhou1,LI Shuhua1,ZHANG Guanyun3(1.College of Chemistry & Chemical Engineering, Guangzhou University, Guangzhou 510006, Guangdong,China; 2.College of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, Guangxi,China; 3.Guangzhou Hirp Chemical Co., Ltd, Guangzhou 510725, Guangdong,China)

【机构】 广州大学化学化工学院； 广州赫尔普化工有限公司；

【摘要】 采用溶胶-凝胶法合成了钼铁催化剂,通过该催化剂,利用空气中的O2进行对二甲苯选择性氧化,制备出对苯二甲醛。催化剂的活性评价结果表明,在n(Mo)∶n(Fe)∶n(Co)=2.4∶1∶0.02和焙烧温度500℃条件下,催化剂的活性最高;反应温度为500℃和空速5500h-1时,对苯二甲醛的收率达到59.2%。FT-IR和XRD结果证实,催化剂的活性组分为Fe2(MoO4)3与少量的MoO,二者具有协同作用。更多还原

【Abstract】 Mo-Fe catalysts were prepared by sol-gel method. The effects of atomic ratio in the catalysts, calcination temperature and GHSV on the behaviors of the catalysts for selective oxidation of p-xylene to terephthaldehyde(TPAL) were investigated. The activity test results showed that the optimum condition was as follows: n(Mo)∶n(Fe)∶n(Co)=2.4∶1∶0.02, calcination temperature 500 ℃, GHSV 5500 h-1. Terephthaldehyde yield of 59.2% was attained under the optimal condition. XRD and FT-IR results showed that the active components were Fe2(MoO4)3 and MoO3, which had synergistic effects during oxidation of p-xylene.更多还原