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新型纳米SO42-/TiO2催化剂制备及催化合成醋酸丁酯
引用本文:章月,蒋平平,董玉明,顾同新,吴洁,郁盛健. 新型纳米SO42-/TiO2催化剂制备及催化合成醋酸丁酯[J]. 工业催化, 2012, 20(12): 63-66. DOI: 10.3969/j.issn.1008-1143.2012.12.013
作者姓名:章月  蒋平平  董玉明  顾同新  吴洁  郁盛健
作者单位:1.江南大学化学与材料工程学院,江苏 无锡 214122; 2.宜兴汉光高新石化有限公司,江苏 无锡 214122
基金项目:国家“十二五”科技支撑计划(2012BAD32B03)资助项目;宜兴科技支撑计划-工业科研经费(SBE201101247)资助项目
摘    要:采用高压水热法合成纳米锐钛矿相TiO2前驱体,通过H2SO4溶液浸渍制备系列新型SO42-/TiO2催化剂,采用XRD、TG-DTG和TEM对其结构和形貌进行表征,并用于催化醋酸与正丁醇的酯化反应,考察H2SO4溶液浓度、浸渍时间和反应时间对酯化率的影响。结果表明,在H2SO4浓度1 mol·L-1、浸渍时间12 h和反应时间180 min条件下,酯化率高达99.2%,催化剂具有优异的催化性能和较佳的重复使用性。

关 键 词:催化化学  固体酸  纳米SO42-/TiO2催化剂  酯化反应  醋酸丁酯  

Synthesis of butyl acetate catalyzed by novel nanosizedSO42-/TiO2 catalyst
ZHANG Yue JIANG Pingping,Dong Yuming,GU Tongxin,WU Jie,YU Shengjian. Synthesis of butyl acetate catalyzed by novel nanosizedSO42-/TiO2 catalyst[J]. Industrial Catalysis, 2012, 20(12): 63-66. DOI: 10.3969/j.issn.1008-1143.2012.12.013
Authors:ZHANG Yue JIANG Pingping  Dong Yuming  GU Tongxin  WU Jie  YU Shengjian
Affiliation:1.School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China;2.Yixing Han Light High and New Petrochemical Co.,Ltd., Wuxi 214122, Jiangsu, China
Abstract:NanosizedSO42-/TiO2 catalysts were synthesized by impregnating aqueous H2SO4 on anatase TiO2,which was prepared by a novel hydrothermal procedure.The texture properties and morphology ofSO42-/TiO2 catalysts were characterized by XRD,TG-DTG and TEM.Their catalytic activity was evaluated in the esterification of acetic acid with n-butanol. The effects of H2SO4 solution concentration,impregnating time and reaction time on esterification rate were investigated.The results showed that the esterification rate of 99.2% was obtained under the optimum condition as follows: H2SO4 solution concentration 1 mol·L-1,impregnating time 12 h and reaction time 180 min.The obtained catalyst possessed excellent catalytic properties and reusability.
Keywords:catalytic chemistry   solid acid   nanosized SO42-/TiO2 catalyst   esterification   butyl acetate  
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