| 稀土固体超强酸SO42-/SnO2- Nd2O3催化合成棕榈酸甲酯 |
| |
| 引用本文： | 闫鹏,郭海福,陈志胜,吴燕妮,王赵志.稀土固体超强酸SO42-/SnO2- Nd2O3催化合成棕榈酸甲酯[J].稀土,2011,32(6). |
| |
| 作者姓名： | 闫鹏 郭海福 陈志胜 吴燕妮 王赵志 |
| |
| 作者单位： | 肇庆学院化学化工学院,广东肇庆,526061 |
| |
| 基金项目： | 肇庆市科技计划项目，肇庆学院青年项目 |
| |
| 摘 要： | 采用溶胶-凝胶法制备稀土固体超强酸催化剂SO4-/SnO2- Nd2O3,以工业棕榈酸和甲醇为原料催化合成棕榈酸甲酯.考察了氧化钕添加量、焙烧温度、硫酸浓度、醇酸质量比、催化剂用量和反应时间对酯化反应的影响.结果表明,当氧化钕添加量为5％,以2.0 mol/L硫酸浸渍后,于550℃下焙烧3h制备的催化剂性能最好.正交实验结果表明,合成棕榈酸甲酯的优化条件为:醇酸质量比为15∶25,催化剂用量为棕榈酸质量的6.0％,反应时间5h.在此条件下,酯化率为90.1％.
|
| 关 键 词： | 稀土固体超强酸 氧化钕 工业棕榈酸 棕榈酸甲酯 |
Synthesis of Methyl Palmitate Catalyzed by Rare Earth Solid Superacid SO42-/SnO2 -Nd2O3 |
| |
| YAN Peng,GUO Hai-fu,CHEN Zhi-sheng,WU Yan-ni,WANG Zhao-zhi.Synthesis of Methyl Palmitate Catalyzed by Rare Earth Solid Superacid SO42-/SnO2 -Nd2O3[J].Chinese Rare Earths,2011,32(6). |
| |
| Authors: | YAN Peng GUO Hai-fu CHEN Zhi-sheng WU Yan-ni WANG Zhao-zhi |
| |
| Affiliation: | YAN Peng,GUO Hai-fu,CHEN Zhi-sheng,WU Yan-ni,WANG Zhao-zhi(School of Chemistry and Chemical Engineering,Zhaoqing University,ZhaoQing 526061,China) |
| |
| Abstract: | Methyl palmitate was synthesized from industrial palmitic acid and methanol using rare earth solid superacid catalyst SO42-/SnO2-Nd2O3 which was prepared by sol-gel method.Effects of mole fraction of Nd2O3 in SnO2-CeO2,calcination temperature of catalyst,concentration of sulphuric acid,mass ratio of methanol to industrial palmitic acid,catalyst dosage and reaction time on the esterification were investigated.The results showed that the activity of SO42-/SnO2-Nd2O3 was better under the following conditions: ... |
| |
| Keywords: | rare earth solid superacid Nd2O3 industrial palmitic acid methyl palmitate |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
