合成缓蚀剂主剂Mannich碱的方法改进
IMPROVENENT OF SYNTHESIS METHOD OF MANNICH BASE INHIBITOR
摘 要
以甲醛、环己胺、苯乙酮为主要原料,利用Mannich反应合成Mannich碱,考察了原料配比对Mannich碱缓蚀剂的缓蚀性能的影响,确定了Mannich碱的优化合成工艺.当甲醛、环己胺和苯乙酮的物质的量之比为3∶2∶3 时,Mannich碱缓蚀剂的缓蚀效果最好.在60 ℃ 20%的盐酸中,Mannich碱用量为1.0%时,钢片腐蚀速率为0.36 g·m-2·h-1,在90℃ 20%的盐酸中,Mannich碱用量为2.0%时,钢片腐蚀速率为1.2 g·m-2·h-1.
Mannich碱
腐蚀速率
苯乙酮
环己胺
Corrosion Inhabitor
Mannich base
Corrosion rate
Cyclohexamine
Acetophenone
Abstract
Mannich base was synthesized by the Mannich reaction from formaldehyde,cyclohexylamine and acetophenone.The effect of material ratio on inhibiting action was investigated and the reaction conditions were determined.When the mass ratio of formaldehyde,cyclohexylamine and acetophenone was 3∶2∶3,the inhibition efficiency was best.At 60 ℃,20% HCl with 1.0% inhibitor,the corrosion rate was 0.36 g·m-2·h-1.At 90 ℃,20% HCl with 2.0% inhibitor,the corrosion rate was 1.2 g·m-2·h-1.
中图分类号 TG174.42
所属栏目 应用技术
基金项目
收稿日期 2007/4/1
修改稿日期 2007/5/10
网络出版日期
作者单位点击查看
引用该论文: CHEN Shi-jun,LIU Xiang,HUI Yan-ni. IMPROVENENT OF SYNTHESIS METHOD OF MANNICH BASE INHIBITOR[J]. Corrosion & Protection, 2007, 28(12): 646～647
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参考文献
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【2】邱海燕,李建波.酸化缓蚀剂的发展现状及展望[J].腐蚀科学与防护技术,2005,17(4):255-258.
【3】孙铭勤,张贵才,葛际江,等.盐酸酸化缓蚀剂DS-1的合成及性能评价[J].钻采工艺,2005(11):90-93.
【4】张大全,周国定,庞学良.聚合物缓蚀剂的研究开发及应用[J].腐蚀与防护,2000,21(7):301-304.
【5】Sk A Ali,M T Saeed,S U R ahman.The isox azolines:a new class of corrorosion inhabitor of mild steel in acid medium[J].Corrosion Science,2003,45:253.
【6】Majmal A,Jrawat,M Aquraishi.Thioamidines as novel class of corrorosion inhibitors[J].British Corrosion Journal,1999,34:253.
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