固体超强酸催化合成氯乙酸高碳脂肪醇酯的研究  

Study on Preparation of High-Carbon Fatty Alcohol Ester of Chloroacetic with Solid Superacid

作　　者：周彩荣[1] 石晓华[1] 葛成波[1] 王海峰[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2010年第3期1-4,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省科技攻关计划资助项目(092102210177)

摘　　要：从节能、绿色、环保的角度出发,采用固体超强酸(SO42-/TiO2)作为催化剂制备氯乙酸高碳脂肪醇酯,采用正交试验法,以酯化率作为考察指标,考察了5个因素对反应的影响,其影响大小的顺序为:反应时间>带水剂用量>物料比>催化剂用量>反应温度,得出了较优的反应条件为:反应温度110℃,反应时间5.5 h,物料比1∶1.157(n醇∶n酸),催化剂用量4%,带水剂用量30 mL,酯化率达到87.4%.对固体超强酸催化剂的活性和再生性进行了考察,结果表明:用此固体超强酸催化合成氯乙酸高碳脂肪醇酯的活性和再生性良好.The High-carbon fatty alcohol ester of chloroacetic was prepared in the presence of solid superacid（SO2-4/TiO2） to aim at the energy-saving,green,environmental protection.Using the Orthogonal experimental design,the esterification ratio was used as an evaluation target,so the resultes showed that the affect level of five factors is reaction time 〉the amount of azeotropic agent 〉material ratio〉 the amount of catalyst〉 the reaction temperature.The esterification ratio was 87.4% in the optimum reaction conditions,such as the reaction temperature 110 ℃,reaction time 5.5 h,material ratio（nalcoholate：nacid）1∶1.157,the amount of catalyst 4%,azeotropic agent 30 mL.The result of re-using and regeneration showed that the solid superacid can be used many times,have good catalytic activity and reproducibility.

关 键 词：高碳脂肪醇 氯乙酸高碳脂肪醇酯 固体超强酸 酯化反应 

分 类 号：TQ223.2[化学工程—有机化工]