2011•Applied Chemical IndustryRequires access
Study on the synthesis and performance evaluation of a kind of acidizing corrosion inhibitor
Junwei Yang
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Abstract
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.