| 硫酸氢钠催化合成己二酸二甲酯 |
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| 引用本文： | 樊丽华,马沛生,李娜,相政乐. 硫酸氢钠催化合成己二酸二甲酯[J]. 天然气化工, 2005, 30(6): 11-14 |
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| 作者姓名： | 樊丽华 马沛生 李娜 相政乐 |
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| 作者单位： | 1. 天津大学,化工学院,天津,300072;河北理工大学,化学工程与生物技术学院,河北,唐山,063009
2. 天津大学,化工学院,天津,300072 |
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| 摘 要： | 以一水合硫酸氢钠为酯化催化剂合成了己二酸二甲酯,并考察了醇酸摩尔比、催化剂用量、反应时间及带水剂用量对酯化反应的影响,确定了合成己二酸二甲酯的优化反应条件:以0.1mol己二酸为基准,醇酸摩尔比为5,催化剂用量为4.0g,带水剂环己烷20ml,回流分水1.0h,己二酸二甲酯收率可达97.51%,质量分数在98%以上。与其它催化剂的比较结果表明,硫酸氢钠作为酯化催化剂具有催化活性高、易与反应液分离、可重复使用等优点。
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| 关 键 词： | 己二酸二甲酯 硫酸氢钠 催化酯化 合成 |
| 文章编号： | 1001-9219（2005）06-11-03 |
| 修稿时间： | 2005-09-06 |
Synthesis of Dimethyl Adipate Catalyzed by Sodium Bisulfate |
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| FAN Li-hua,MA Pei-sheng,LI Na,XIANG Zheng-le. Synthesis of Dimethyl Adipate Catalyzed by Sodium Bisulfate[J]. Natural Gas Chemical Industry, 2005, 30(6): 11-14 |
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| Authors: | FAN Li-hua MA Pei-sheng LI Na XIANG Zheng-le |
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| Affiliation: | 1. School of Chemical Engineering, Tianjin University, Tianjin 300072, China; 2. College of Chemical Engineering and Biological Technology, Hebei Polytechnic University, Tangshan 063009, China |
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| Abstract: | Dimethyl adipate were synthesized by esterification of adipic acid and methanol catalyzed by sodium bisulfate.The effects of the molar ratio of reactants,amount of catalyst,reaction time and the amount of the dewatering reagent on the yield of dimethyl adipate were investigated.The optimized reaction conditions were established in which the yield and the purity of the ester could reach 97.51% and 98% respectively,under the selected reaction conditions: adipic acid 0.1mol,n(adipic acid):n(methanol)=1:5,the catalyst 4.0g,cyclohexane 20ml,refluxing and water segregating for 1.0h.The experimental results indicated that sodium bisulfate exhibited high catalytic activity for the esterification reaction and it could be easily recovered for reuse. |
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| Keywords: | dimethyl adipate sodium bisulfate catalysitic esterification synthesis |
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