| SO42-/Zr-MCM-41分子筛的合成及其在酯催化反应中的应用 |
| |
| 引用本文： | 刘书静,李云鹏,王彦恩,马晶军.SO42-/Zr-MCM-41分子筛的合成及其在酯催化反应中的应用[J].河北农业大学学报,2012,35(4):108-110. |
| |
| 作者姓名： | 刘书静 李云鹏 王彦恩 马晶军 |
| |
| 作者单位： | 河北农业大学理学院,河北保定,071000 |
| |
| 基金项目： | 河北省保定市科学研究与发展计划(2012)资助 |
| |
| 摘 要： | 以十六烷基三甲基溴化铵为模板,硅酸钠为硅源,采用微波辐射方法合成出了Zr-MCM-41分子筛,将其在硫酸溶液中浸渍得到了具有酸催化作用的SO42-/Zr-MCM-41分子筛,用于催化合成乳酸乙酯.探讨了对乳酸乙酯收率的各影响因素.结果表明:催化剂锆硅摩尔比为0.05,在100℃条件下微波晶化2.5h,焙烧温度550℃,酯化产率86.2％.催化剂重复使用4次后再活化使用,产率仍达80％以上,且易分离,不污染环境.
|
| 关 键 词： | 微波法 SO42-/Zr-MCM-41分子筛 酯化反应 |
Synthesis of SO42-/Zr-MCM-41 and application in catalytic esterification |
| |
| LIU Shu-jing
,
LI Yun-peng
,
WANG Yan-en
,
MA Jing-jun.Synthesis of SO42-/Zr-MCM-41 and application in catalytic esterification[J].Journal of Agricultural University of Hebei,2012,35(4):108-110. |
| |
| Authors: | LIU Shu-jing LI Yun-peng WANG Yan-en MA Jing-jun |
| |
| Institution: | (College of Science,Agricultural University of Hebei,Baoding 071001,China) |
| |
| Abstract: | Zr-MCM-41 was synthesized by microwave method with sodium silicate as silica source and cetrimonium bromide as structure template.It was infused in sulfuric acid to get the SO42-/Zr-MCM-41 with acid catalysis.Ethyl lactate was synthesized through it.The effect of factors on the yield was discussed.The optimum synthesis conditions were as follows:the molar ratio of Zr and Si was 0.05,microwave crystallization 2.5 hours under 100 ℃ the calcination temperature was 550 ℃.The yield of esterification was 86.2%.The catalyst can be reused for 4 times before the activation using and yield can still reach over 80%.Moreover,it can be separated easily from product without polluting the environment. |
| |
| Keywords: | microwave means SO42-/Zr-MCM-41 molecular sieve esterification |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
