硬脂酸酰氯缩合反应合成烷基烯酮二聚体工艺研究  

Synthesis Processes of Alkyl Ketene Dimer by Stearic Acid Chloride via Condensation Reaction

作　　者：蒙鸿飞 刘耀宗 杨玉宁 杨英朝 陶春霞 Meng Hongfei;Liu Yaozong;Yang Yuning;Yang Yingzhao;Tao Chunxia(Gansu Yinguang Juyin Chemical Co.,Ltd.,Gansu,730900)

机构地区：[1]甘肃银光聚银化工有限公司,甘肃730900

出　　处：《当代化工研究》2024年第8期156-158,共3页Modern Chemical Research

摘　　要：本文以目前无溶剂工业化生产工艺条件为基础,以提高硬脂酸转化率和AKD产品纯度为方向,研究了硬脂酸酰氯合成烷基烯酮二聚体(AKD)的反应,考察了投料方式、反应物摩尔比、反应温度、反应时间和保温时间对硬脂酸酰氯转化率和产品烷基烯酮二聚体(AKD)纯度的影响。结果表明,反应物摩尔比、反应温度和反应时间是影响硬脂酸酰氯缩合反应的主要因素,最佳反应条件为:反应物摩尔比1.3~1.5(三乙胺与硬脂酸酰氯的摩尔比);反应温度60~65℃;反应时间60~70 min。On the basis of solvent-free industrial production process and direction of high amine ratio technology,the synthesis processes of alkyl ketene dime from stearic acid chloride was studied.The influences of feeding mode,the ratio of materials,reaction temperature,reaction time and insulation reaction time on the conversion of material and yield of target compound were investigated.The optimized process conditions are as follows:molar ratio of triethylamine:stearic acid chloride is 1:1.3~1.5,the reaction temperature of 60~65℃,the reaction time of 60~70 min.

关 键 词：硬脂酸酰氯 烷基烯酮二聚体 三乙胺 缩合反应 合成 

分 类 号：TQ56[化学工程—炸药化工] O69[理学—化学] O621.3