Novel quaternary salts of quinoline oligomer as metal surface protective materials against acid corrosion

The high anticorrosion efficiency of the quaternary salt of oligoquinolines on carbon steel surfaces in aqueous acidic media at both ambient and elevated temperatures was observed. They can be utilized as valuable corrosion inhibitors in the acid-flooding process of oil well exploration. While the e...

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Published inChemistry of materials Vol. 4; no. 2; pp. 245 - 247
Main Authors Chiang, Long Y, Swirczewski, J. W, Ramanarayanan, T. A, Mumford, J. D
Format Journal Article
LanguageEnglish
Published American Chemical Society 01.03.1992
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Summary:The high anticorrosion efficiency of the quaternary salt of oligoquinolines on carbon steel surfaces in aqueous acidic media at both ambient and elevated temperatures was observed. They can be utilized as valuable corrosion inhibitors in the acid-flooding process of oil well exploration. While the exact mechanism of inhibition is unclear, it was hypothesized that positively charged quinoline oligomers being absorbed on the metal surface create an electrostatic field which repels the passage of ferrous ions into solution. If this mechanism is correct, the inhibition action can be extended to other metals.
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ISSN:0897-4756
1520-5002
DOI:10.1021/cm00020a002