摘要
实验利用丙二醇做溶剂,NaHCO_3为催化剂,研究肉桂醛水解制苯甲醛的工艺条件。通过单因素试验和正交试验得出反应温度、催化剂用量、H_2O_2的用量和反应时间对得率有显著影响,最佳条件:反应时间2.5 h,反应温度60℃,肉桂醛和NaHCO_3的摩尔比1∶0.15,肉桂醛和H_2O_2的质量比1∶20。苯甲醛平均得率81.85%。
Taking propylene glycol as solvent and NaHCO3 as catalyst, the conditions of benzaldehyde processing by cinnamaldehyde hydrolysis was studied. By single factor test and orthogonal test, it was concluded that reaction temperature, catalyst, H2O2 dosage and reaction time of cinnamaldehyde hydrolysis system had great effects on the yield of benzaldehyde. The optimum technological condition was that reaction time was 2.5 h, the reaction temperature was 60℃, The molar ratio of cinnamic aldehyde and NaHCO3 was 1:0.15, the quality ratio of cinnamic aldehyde and H2O2 was 1:20. The average yield of benzaldehyde was 81.85%.
作者
陈海燕
李桂珍
梁忠云
秦荣秀
CHEN Hai-yan;LI Gui-zhen;LIANG Zhong-yun;QIN Rong-xiu(Guangxi Forest Research Center, Research Center of Anise & Cinnamon Technology, Guangxi Key Laboratory of Special Non-wood Forest Cultivation & Utilization, Nanning 530002, China)
出处
《广西林业科学》
2017年第1期93-97,共5页
Guangxi Forestry Science
基金
广西林业科技项目(桂林科字[2014]第36号)
关键词
肉桂醛
苯甲醛
水解
苯甲醛得率
Cinnamaldehyde
benzaldehyde, hydrolys
yield of benzaldehyde
