固体超强酸催化合成N-丁基-2-吡咯烷酮的研究  

Study on the Synthesis of N-butyl-2-pyrrolidone Catalyzed by Solid Superacid

作　　者：李修刚 杨晓红 吕慧敏 张玲钰 LI Xiugang;YANG Xiaohong;LYU Huimin;ZHANG Lingyu(College of Material and Chemical Engineering,Tongren University,Tongren 554300,China)

机构地区：[1]铜仁学院材料与化学工程学院,贵州铜仁554300

出　　处：《信阳师范学院学报（自然科学版）》2023年第1期112-116,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(11964032);铜仁学院博士科研启动基金项目(trxyDH2204)。

摘　　要：采用固定床技术,以Al_(2)O_(3)@SO_(4)^(2-)/ZrO_(2)-NiO固体超强酸为催化剂,通过1,4-丁内酯(GBL)和正丁胺(BA)的缩合反应合成N-丁基-2-吡咯烷酮(NBP),考察了固定床工艺参数对NBP得率的影响。结果表明,合成NBP的最佳实验方案为:原料正丁胺与1,4-丁内酯摩尔配比为1.2∶1,反应温度300℃,反应物进料速度为0.5 mL/min,此时NBP的得率可达97.3%。N-butyl-2-pyrrolidone(NBP) is synthesized by the condensation reaction of 4-butyrolactone(GBL) and n-butylamine(BA) using Al_(2)O_(3)@SO_(4)^(2-)/ZrO_(2)-NiO as the catalyst in fixed bed. The influence factors on the conversion of NBP are investigated and the optimized reaction conditions are observed with the ratio of n-butylamine and 1,4-butyrolactone of 1.2∶1, reaction temperature at 300 ℃, and the feeding rate of 0.5 mL/min. The yield of NBP can reach up to 97.3% based on 1,4-butyrolactone.

关 键 词：固定床 N-丁基-2-吡咯烷酮 1 4-丁内酯 正丁胺 

分 类 号：O626[理学—有机化学] TQ252.3[理学—化学]