摘要
PTC和氢氧化钠参与下,2-吡咯烷酮与过量丙烯腈于甲苯中亲核加成,精馏得淡黄色液体。研究PTC种类及用量对产物气相色谱纯度与实际收率的影响,结果表明:相比CTAB和TBA,BTEAC作催化剂时可得较优产品指标。正交实验确定实验条件,即BTEAC占总加料量质量分数0.5%、氢氧化钠水溶液浓度10%、丙烯腈过量5%,产品气相色谱纯度98.5%,实际收率94.2%。
The nucleophilic addition reaction was happened between 2 -pyrrolidone and acrylonitrile in the toluene solvent using the PTC and sodium hydroxide respectively as phase transfer agent and catalyst. The nitrile fraction which seemed as pale yellow liquid was obtained by rectification. The effect of types and amount of FWC on gas chromatographic purity and yield of product were studied. The results showed that a better product could be obtained by using BTEAC as the catalyst compared to the CTAB and TBA. The optimum experimental condition was determined by the orthogonal ex- perimental method. The yield was as high as 94. 2% when the quality score of BTEAC accounted for 0. 5% of the total feeding mass, the concentration of aqueous solution of sodium hydroxide was 10% , acrylonitrile excessed 5%, and gas chromatographic purity of the product was 98.5%.
出处
《广州化工》
CAS
2013年第6期63-64,132,共3页
GuangZhou Chemical Industry
