摘要
以油酸和二乙烯三胺为原料,氧化钙为脱水剂,氯化苄为季铵化试剂,合成了新型咪唑啉季铵盐缓蚀剂。合成工艺条件为:油酸0.05 mol,二乙烯三胺0.06 mol,氧化钙0.1 mol,在80℃下酰胺化2 h,升温至160℃环化反应6 h,加入氯化苄0.06 mol,在55℃季铵化反应2.5 h。结果表明,与现有甲苯为挟水剂工艺比较,该工艺酰胺化及环化反应温度低,咪唑啉成环性能及缓蚀效果好;N80钢片在25℃下HCl浓度0.5 mol/L,缓蚀剂浓度200 mg/L的溶液中,缓蚀率高达85.6%。
A new imidazoline quaternary ammonium salt was amine, benzyl chloride as quaternary reagent and CaO as dehy that it was produced by the amidation reaction at 80℃ for 2 synthesized drating agent. The h with oleic acid oleic acid, diethylenetri- technics conditions were 0.05 tool, diethylenetri- amine 0.06 mol and CaO 0.1 mol. Then the cyclization reaction was at 160℃ for 6 h. Quaternarization was carried out with benzyl chloride 0.06 mol at 55℃ for 2.5 h. The results showed that the product with calcium oxide as the dehydrating agent was synthesized at a lower temperature for amidation reaction and cyclization reaction and had a better inhibitive efficiency than the process existed with methyLbenzene as dehydrating agent. The inhibiting efficiency of N80 steel reached 85.6% in solution of HC1 0.5 mol/L and corrosion inhibitor 200 mg/L at 25℃.
出处
《应用化工》
CAS
CSCD
2013年第11期2005-2008,共4页
Applied Chemical Industry
基金
西安文理学院分析化学陕西省级重点学科资助
西安文理学院校级大学生创新创业训练计划项目资助(201221)
关键词
咪唑啉季铵盐
缓蚀剂
氧化钙
合成
性能评价
quaternary ammonium imidazoline
corrosion inhibitor
calcium oxide
synthesis
perform- ance evaluation
