咪唑啉季铵盐的合成及其缓蚀性能评价  

Synthesis and Corrosion Inhibition Performance of Imidazoline Quaternary Ammonium Salt

作　　者：杨洋 赵起锋 徐慧 秦俊岭 尚跃再 刘博 李顺 Yang Yang;Zhao Qifeng;Xu Hui;Qin Junling;Shang Yuezai;Liu Bo;Li Shun(China Oilfield Services Limited,Tianjin,300459,China;;CNOOC Changzhou Paint and Coatings Industry Research Institute Co.,Ltd.,Changzhou 213016,China)

机构地区：[1]中海油田服务股份有限公司,天津塘沽300459 [2]中海油常州涂料化工研究院有限公司,江苏常州213016

出　　处：《涂层与防护》2018年第8期49-52,共4页Coating and Protection

摘　　要：以油酸与二乙烯三胺合成咪唑啉中间体,用亚磷酸二甲酯将咪唑啉中间体季铵化为水溶性季铵盐缓蚀剂。结果表明,咪唑啉季铵盐的最佳合成条件为:咪唑啉中间体与磷酸二甲酯摩尔比为1∶0.8,季铵化温度90℃,季铵化反应时间5 h,溶剂为异丙醇。40×10-6亚磷酸二甲酯改性合成的季铵盐缓蚀剂在1mol/L的HCl溶液中的缓蚀率高达98.3%。An imidazoline quaternary ammonium salt corrosion inhibitor was prepared by conversion of the imidazoline with dimethyl phosphate wherein the imidazoline was synthesized from oleic acid and diethylenetriamine.The results showed that the corrosion rate of the imidazolines quaternary modified with 40 ppm dimethyl phosphate could reach up to 98.3%in the HCl solution of 1mol/L when the molar ratio of imidazoline to dimethyl phosphite was 1∶0.8,the quaterization temperature was 90℃,the reaction time was 5 h,and the solvent was dimethylcarbinol

关 键 词：缓蚀剂 咪唑啉季铵盐 亚磷酸二甲酯 缓蚀率 

分 类 号：TQ630.4[化学工程—精细化工]