一种酸化缓蚀剂的合成及性能研究  

Study on the synthesis and performance evaluation of a kind of acidizing corrosion inhibitor

作　　者：孙天祥 李丛妮[2] 李浩[2] 杨俊伟[2] 

机构地区：[1]陕西延长石油(集团)有限责任公司定边采油厂,陕西定边710000 [2]陕西省石油化工研究设计院,陕西西安710054

出　　处：《应用化工》2011年第11期1942-1944,1947,共4页Applied Chemical Industry

摘　　要：以甲醛、乙二胺、苯乙酮为反应主要原料,利用Mannich反应合成了曼尼希碱缓蚀剂。最佳合成条件:反应温度50℃,反应时间12 h,pH值为4,苯乙酮、甲醛、乙二胺物质的量比为2:4:1。用静态失重法对其缓蚀性能进行了综合评价。结果表明,在90℃、15%的盐酸中加入1%的缓蚀剂,N-80钢片的腐蚀速率可以达到2.473 g/(m2.h),具有良好的缓蚀性能。A new acidizing corrosion inhibitor was synthesized by Mannich reaction with formaldehyde,ethylenediamine and acetophenone as the raw materials.The optimal synthetic conditions were found as follows：reaction temperature 50 ℃,the reaction time 12 h,pH value 4.0,molar ratio of acetophenone,formaldehyde and ethylenediamine 2 ∶ 4 ∶ 1.The performance of corrosion inhibitor was evaluated by zero-gravity test.The results indicated that at 90 ℃,20%HCl with 1.0% corrosion inhibitor,the corrosion rate was 2.473 g/（m2·h）,the inhibition efficiency was the best.

关 键 词：缓蚀剂 曼尼希碱 酸化 缓蚀性能 

分 类 号：TG174.42[金属学及工艺—金属表面处理]