Stray current corrosion inhibitor
AssigneeChampionX LLC
InventorsYuan DING, Jeremy MOLONEY
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Abstract
Compositions and methods for inhibiting corrosion of metal surfaces are disclosed herein. The compositions and methods are particularly useful for inhibiting corrosion of metal surfaces caused by electric currents. The corrosion inhibitor compositions may include one or more of an organic sulfur compound, an organic sulfonic acid amine salt, a dicarboxylic acid diethanolamine salt, a fatty-amine condensate salt, a carboxylic acid-polyamine condensate, and a carboxylic acid. The compositions may include other corrosion inhibitors and/or additional components, such as a solvent, a scale inhibitor, or a biocide, for example.
Claims19
A method of inhibiting corrosion of a metal surface in contact with a medium, comprising:
- adding an effective amount of a composition to the medium, wherein the composition comprises a member selected from the group consisting of an organic sulfur compound, an organic sulfonic acid amine salt, a dicarboxylic acid diethanolamine salt, a fatty-amine condensate salt, a carboxylic acid-polyamine condensate, a carboxylic acid, and any combination thereof, and
- applying an electric current to the metal surface.
Dependencies are inferred from the claim text.