固体超强酸催化剂SO2-4/TiO2-MoO3的制备及其催化合成缩醛（酮）

CIESC Journal

• REACTION KINETICS, CATALYSIS AND…… • 上一篇下一篇

固体超强酸催化剂SO^2-₄/TiO₂-MoO₃的制备及其催化合成缩醛（酮）

杨水金^a; 梁永光^a; 余协卿^a; 孙聚堂^b

^a Department of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, China
^b College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2005-02-28 发布日期:2005-02-28
通讯作者: 杨水金

Preparation of SO4^2-／TiO2-MoO3 Solid Superacid and Its Catalytic Activity in Acetalation and Ketalation

YANG Shujin^a; LIANG Yongguang^a; YU Xieqing^a; SUN Jutang^b

^a Department of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, China
^b College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China

Received:1900-01-01 Revised:1900-01-01 Online:2005-02-28 Published:2005-02-28
Contact: YANG Shuijin

摘要/Abstract

摘要： SO4^2-/TiO2-MoO3, a novel solid superacid, has been prepared and its catalytic activity at different synthetic conditions was examined with esterification of n-butanoic acid and n-butyl alcohol as probing reaction.The optimum conditions were also found, that is, the mass ratio of MoO3 used in the compound is 25%, the calcination temperature 450℃, and the soaked consistency of H2SO4 is 0.5mol.L^-1. Then it was applied in the catalytic synthesis of six similar important ketals and acetals as catalyst and revealed high catalytic activity. Under the condition that the molar ratio of aldehyde/ketone to glycol was 1:1.5, the mass ratio of the catalyst to the reactants was 0.5% and the reaction time 1.0 h, the yield of ketals and acetals reached up to 63.2%. The catalyst can be easily recovered and reused.

关键词: SO4^2-／TiO2-MoO3;固体超强酸;化学性能;反应活性;缩酮化作用;缩醛化作用;催化作用;化学反应

Abstract: SO4^2-/TiO2-MoO3, a novel solid superacid, has been prepared and its catalytic activity at different synthetic conditions was examined with esterification of n-butanoic acid and n-butyl alcohol as probing reaction.The optimum conditions were also found, that is, the mass ratio of MoO3 used in the compound is 25%, the calcination temperature 450℃, and the soaked consistency of H2SO4 is 0.5mol.L^-1. Then it was applied in the catalytic synthesis of six similar important ketals and acetals as catalyst and revealed high catalytic activity. Under the condition that the molar ratio of aldehyde/ketone to glycol was 1:1.5, the mass ratio of the catalyst to the reactants was 0.5% and the reaction time 1.0 h, the yield of ketals and acetals reached up to 63.2%. The catalyst can be easily recovered and reused.

Key words: SO2-4/TiO2-MoO3, solid superacid, acetalation, katalation

杨水金,梁永光,余协卿,孙聚堂. 固体超强酸催化剂SO^2-₄/TiO₂-MoO₃的制备及其催化合成缩醛（酮）[J]. CIESC Journal.

YANG Shujin, LIANG Yongguang, YU Xieqing, SUN Jutang. Preparation of SO4^2-／TiO2-MoO3 Solid Superacid and Its Catalytic Activity in Acetalation and Ketalation[J]. .

固体超强酸催化剂SO^2-₄/TiO₂-MoO₃的制备及其催化合成缩醛（酮）

Preparation of SO4^2-／TiO2-MoO3 Solid Superacid and Its Catalytic Activity in Acetalation and Ketalation

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价