合成了一种具有较好耐温和耐酸性能的咪唑啉季铵盐缓蚀剂,其最佳合成条件为:油酸、二乙烯三胺最佳配比为1∶1.2,酰化温度为160℃,酰化时间为3 h,环化温度为220℃,环化时间为4h,季铵化试剂氯化苄,咪唑啉中间体与氯化苄的最佳摩尔比为1∶1.2,季铵化反应温度为60℃,季铵化反应时间为3h.当缓蚀剂的加量为0.5％(质量分数),酸化温度为80 ℃,酸化时间为4h,酸液浓度为15％时,缓蚀率可以达到99.1％以上.%An more thermostable and acid-resistance imidazolium quaternary corrosion inhibitor was synthesized. The optimal synthesis condition were as follows: the molar ratio of oleic acid to diethylenetri-amine was 1: 1.2, acylation reaction temperature was 160 ℃, acylation time was 3 h; cyclization reaction temperature was 220 ℃, cyclization time was 4 h; benzyl chloride was selected as quaternization reagent and the molar ratio of benzyl chloride to imidazoline intermediate was 1.2: 1, quaterization temperature was 60 ℃, reaction time was 3 h. In 15% hydrochloric acid, when the mass fraction of the inhibitor was 0.5%, the corrosion rate was 99.1%, with acidification temperature 80 ℃ and time 4 h.
展开▼
