Fe-In复合氧化物催化剂的制备及其催化苯酚甲基化性能  

Preparation and catalytic performance of Fe-In based composite oxides catalyst for phenol methylation

作　　者：张书贤 翟新阳 郭佳 翟德伟 田卢兵 Zhang Shuxian;Zhai Xinyang;Guo Jia;Zhai Dewei;Tian Lubing(Zhejiang Fangyuanxin Biopharmaceutical Co.,Ltd.,Shaoxing 312000,Zhejiang,China;Changhai Biological Company,Zhejiang Medicine Co.,Ltd.,Shaoxing 312000,Zhejiang,China)

机构地区：[1]浙江芳原馨生物医药有限公司,浙江绍兴312000 [2]浙江医药股份有限公司昌海生物分公司,浙江绍兴312000

出　　处：《工业催化》2024年第7期59-65,共7页Industrial Catalysis

摘　　要：通过共沉淀、老化、洗涤、干燥、焙烧、粉碎、成型等步骤制备一种Fe-In复合氧化物催化剂并用于催化苯酚气相烷基化制邻甲基苯酚。考察制备温度、终点pH值及活性组分物质的量比对催化剂晶相、孔结构及催化活性的影响。结果表明,当制备温度为55℃,终点pH值为约8.5,n(Fe)∶n(In)∶n(Cr)∶n(Al)=100∶2∶1∶1时,催化剂性能最佳,邻甲酚收率41.1%。采用该催化剂制备邻甲基苯酚,选择性高,且工艺过程简单,适宜连续化大规模生产。Fe-In composite oxide catalyst was prepared by co precipitation,aging,washing,drying,calcination,crushing,and shaping,and used for catalyzing the gas-phase alkylation of phenol to produce o-methylphenol.The effects of preparation temperature,end point pH value,and the molar ratio of active component substances on the crystal phase,pore structure,and catalytic activity of the catalyst were investig-ated.The results showed that when the preparation temperature was 55℃,the end point pH value was about 8.5,and n(Fe)∶n(In)∶n(Cr)∶n(Al)=100∶2∶1∶1,the catalyst performance was optimal,with o-cresol yield of 41.1%.The use of this catalyst to prepare ortho methylphenol has high selectivity and a simple process,making it suitable for continuous large-scale production.

关 键 词：催化剂工程 氧化铁 氧化铟 氧化铬 苯酚邻位烷基化 

分 类 号：TQ426.94[化学工程] TQ223.162