石油化工2017，Vol.46Issue(4)：444-448,5.DOI:10.3969/j.issn.1000-8144.2017.04.009
连续催化精馏合成己二酸二甲酯
Synthesis of dimethyl adipate through continuous catalytic distillation
魏晓霞 1霍稳周 1陈明 1候学伟 1季秀珍1
作者信息
- 1. 中国石化 抚顺石油化工研究院,辽宁抚顺113001
- 折叠
摘要
Abstract
Dimethyl adipate was synthesized from adipic acid and methanol through self-catalyzed pre-esterification and then continuous catalytic distillation.The effects of reaction temperature,reaction time and alcohol-acid molar ratio on the esterification were investigated.It was showed that,under the optimal pre-esterification conditions of alcohol-acid molar ratio of 3,reaction temperature of 140 ℃,saturated vapor pressure and reaction time of 60 min,the conversion of adipic acid reached 95.6％.It was also indicated that,under the optimal process conditions for the continuous esterification of reaction temperature of 95 ℃,alcohol-acid molar ratio of 15,adipic acid LHSV of 0.7 h-1 and reaction time 2 000 h,the conversion of adipic acid and the selectivity to dimethyl adipate reached 99.76％ and 99.99％,respectively.关键词
催化精馏/酯化/自催化/己二酸/己二酸二甲酯Key words
catalytic distillation/esterification/self-catalysis/adipic acid/dimethyl adipate分类
化学化工引用本文复制引用
魏晓霞,霍稳周,陈明,候学伟,季秀珍..连续催化精馏合成己二酸二甲酯[J].石油化工,2017,46(4):444-448,5.
