| 树脂固载硅钨酸催化合成乙二醇硬脂酸酯 |
| |
| 引用本文： | 梁红冬,陈晓娜.树脂固载硅钨酸催化合成乙二醇硬脂酸酯[J].广州化工,2009,37(7):65-66. |
| |
| 作者姓名： | 梁红冬 陈晓娜 |
| |
| 作者单位： | 茂名学院,化学与生命科学学院,广东,茂名,525000 |
| |
| 摘 要： | 以树脂固载硅钨酸为催化剂，乙二醇和硬脂酸为原料，催化合成乙二醇硬脂酸酯。重点研究离子交换树脂的种类、催化剂用量、反应时间、带水剂的种类及其用量，醇酸摩尔比等因素对合成乙二醇硬脂酸酯收率的影响。结果表明，催化剂用量为硬脂酸质量的25％，反应时间为4.5h，n乙二醇：n硬脂酸=3.0：1，环己烷带水剂量为10mL，酸的转化率可达94％以上，并且催化剂可以重复使用。
|
| 关 键 词： | 固载硅钨酸 离子交换树脂 催化合成 乙二醇硬脂酸单酯 |
Catalytic Synthesis of Ethylene Glycol Stearate by Silicotungstic Acid Immobilized on Ion Exchange Resin |
| |
| LIANG Hong-dong,CHEN Xiao-na.Catalytic Synthesis of Ethylene Glycol Stearate by Silicotungstic Acid Immobilized on Ion Exchange Resin[J].GuangZhou Chemical Industry and Technology,2009,37(7):65-66. |
| |
| Authors: | LIANG Hong-dong CHEN Xiao-na |
| |
| Affiliation: | Maoming University;Gungdong Maoming 525000;China |
| |
| Abstract: | Silicotungstic acid Immobilized on ion exchange resin as a catalyst,ethylene glycol and stearic acid as raw materials,Synthesis of glycol stearate.Influecing on the yield of reaction craft like the type of ion exchange resin,the amount of catalyst,reaction time,with the type and amount of water-carrying agent,molar ratio of glycol to acid was investigated.The results showed that the amount of catalyst was 25%,reaction time was 4.5h,the molar ration of alcohol to acid was 3.0:1,cyclohexane was 10mL.The conve... |
| |
| Keywords: | immobilized silicotungstic acid ion exchange resin catalyst synthesis ethylene glycol stearate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
