中国石油大学学报（自然科学版）2025，Vol.49Issue(2)：189-195,7.DOI:10.3969/j.issn.1673-5005.2025.02.018
新型稠杂环季铵盐的合成及其酸化缓蚀性能
Synthesis and performance of a novel fused heterocyclic quaternary ammonium salt as acidizing corrosion inhibitor
摘要
Abstract
A novel acidizing corrosion inhibitor of fused heterocyclic quaternary ammonium salt(BQD)was prepared in two stages by"one-pot method"using quinoline,benzyl chloride and sodium nitrite as raw materials.The application potential as an acidizing corrosion inhibitor alone was evaluated thereafter.The corrosion inhibition performance of the corrosion inhibitor was studied by static weight loss method,electrochemical method,AFM surface morphology and contact angle analysis.The results show that the corrosion rate of the final product BQD obtained by the"one-pot method"is only 2.48 g·m-2·h-1 for N80 steel sheet at 90℃in 15%HCl solution at a single addition of 0.5%.This meets the industry-level standard require-ments and is much better than the corrosion inhibition effect of the intermediate product quinoline quaternary ammonium salt BQC of the"one-pot method".The fused heterocyclic quaternary ammonium salt corrosion inhibitor can form an adsorption layer on the surface of N80 steel sheet.Its adsorption conforms to Langmuir adsorption isotherm,proving that it belongs to a mixed-type corrosion inhibitor.关键词
稠杂环季铵盐/喹啉季铵盐/合成/酸化/缓蚀性能Key words
fused heterocyclic quaternary ammonium salt/quinoline quaternary ammonium salt/synthesis/acidizing/corro-sion inhibition performance分类
能源科技引用本文复制引用
王业飞,王婧,杨华,杨震,杨秋雯,吴佳佳..新型稠杂环季铵盐的合成及其酸化缓蚀性能[J].中国石油大学学报（自然科学版）,2025,49(2):189-195,7.基金项目
国家重点研发计划政府间国际科技创新合作重点专项(2021YFE0107000) （2021YFE0107000）
国家自然科学基金面上项目(52074339) （52074339）
山东省自然科学基金面上项目(ZR201911080151) （ZR201911080151）
