MoO3／γ-Al2O3催化剂中钼含量对草酸二甲酯与苯酚酯交换反应催化活性的影响  

Effect of Mo content in MoO_3/γ-Al_2O_3 on the catalytic activity for transesterification of dimethyl oxalate with phenol

作　　者：温守东[1] 胡兴兰[1] 巩金龙[2] 马新宾[2] 

机构地区：[1]承德石油高等专科学校,河北承德067000 [2]天津大学化工学院绿色合成与转化教育部重点实验室,天津300072

出　　处：《化工进展》2008年第9期1439-1441,共3页Chemical Industry and Engineering Progress

基　　金：河北省教育厅科研项目(2002162)

摘　　要：研究了使用催化剂MoO3/γ-Al2O3时钼含量对草酸二甲酯(DMO)与苯酚酯交换生成甲基苯基草酸酯(MPO)和草酸二苯酯(DPO)反应活性的影响。结果表明,钼含量为14%(质量分数)时,DPO达到最大收率6.1%,DMO达到最大转化率75.1%。并对MoO3/γ-Al2O3催化剂的组成、结构和相态采用比表面积测定、X射线衍射、吡啶吸附IR光谱分析、NH3-TPD测试等方法进行了表征。The influence of molybdenum content on the catalytic performance in the transesterification of dimethyl oxalate （DMO） with phenol to methyl phenyl oxalate （MPO） and diphenyl oxalate （DPO） was investigated. The results indicated that the MoO3/γ-Al2O3 catalyst with 14% Mo content gave maximal DPO yield of 6.1% and 75.1% DMO conversion. The component, structure and phase of MoO3/γ-Al2O3 catalysts were characterized by means of X-ray diffraction （XRD）, BET specific surface area, temperature-programmed desorption of ammonia （NH3-TPD）, and FTIR analysis of adsorbed pyridine.

关 键 词：碳酸二笨酯 酯交换 草酸二甲酯 MoO3/γ-Al2O3 表征 

分 类 号：TQ245[化学工程—有机化工]