摘要
以二甲苯为溶剂 ,月桂酸和二乙烯三氨为原料 ,月桂酸与二乙烯三氨摩尔比为 2∶3 ,在 1 2 0～2 60℃条件下发生酰胺化及环化脱水反应 5～ 6h,再经真空蒸馏脱除过量的二乙烯三氨 ,得浅黄色透明月桂酸咪唑啉产品 ,收率不低于 93 %。将咪唑啉产品与氯乙酸钠溶液反应 ,制得咪唑啉季铵盐两性表面活性剂 ,并对影响该表面活性剂合成的因素进行了讨论。
Transparent yellowish lauric acid imidazoline was synthesized from lauric acid and diethyl triamine (their mole ratio 2∶3) under the temperature of 120～ 260 ℃ for 5～6 h using xylene as solvent by first treating lauric acid with diethyl triamine,then removing the excessive diethyl triamine with the yield ≥93%.The structure of the product was characterized by IR. The obtained imidazoline was treated with sodium chloroacetate solution with the formation of lauric acid imidazoline quaternary ammonium salt ampholytic surfactant, which can be widely used as corrosion inhibitor, disperser, bactericide in oil field and surfactant detergent in industry, ect.
出处
《精细石油化工进展》
CAS
2003年第11期38-40,共3页
Advances in Fine Petrochemicals
