猪油制备烷醇酰胺表面活性剂  

On the preparation of lard alkanolamide surfactants

作　　者：龚旌[1] 

机构地区：[1]闽江学院化学与化学工程系,福建福州350108

出　　处：《闽江学院学报》2010年第2期127-131,共5页Journal of Minjiang University

基　　金：福建省科技创新资金项目(2007C0006)

摘　　要：以猪油与甲醇酯交换反应得到的脂肪酸甲酯为原料,在催化剂作用下与二乙醇胺合成烷醇酰胺.考察了反应温度、反应时间、催化剂用量、真空度等因素对反应的影响,通过单因素实验和正交实验确定出最佳配方和反应条件:n(甲酯)∶n(二乙醇胺)=1∶1.6,反应温度100℃,反应时间2.0 h,真空度0.07 MPa,催化剂用量0.6%(基于脂肪酸甲酯的质量),烷醇酰胺的收率达95.45%.通过红外光谱仪对产物进行了结构表征,并对界面张力进行了测定.结果表明,产物具有较好的界面活性,为猪油的综合利用探索了一条新的途经.A new type alkanolamide was synthesized by condensation of diethanolamine with catalyst and fatty acid methyl ester which was obtained by esterifying lard with methanol. The influence of reaction tem- perature, reaction time, dosage of catalyst, degree of vacuum and other factors on the reaction conditions was studied. The optimum epoxidisation process was optimized by single-factor experiment and orthogonal experiment, n （ fatty acid methyl ester ） ： n （diethanolamine） = 1：1.6 ,reaction temperature was 100 ℃, reaction time was 2.0 h, degree of vacuum was 0.07 MPa, catalyst dosage was 0.6% （ based on the weight of fatty acid methyl ester） ,the alkanolamide yield was 95.45%. The substance of synthesis was characterized through infrared spectrogram and interface tension was approved. The results of performance test showed that the products were of excellent interface activity,This production process provides a new way for using lard.

关 键 词：猪油 二乙醇胺 表面活性剂 烷醇酰胺 

分 类 号：TE626.24[石油与天然气工程—油气加工工程]