Azole derivatives for corrosion mitigation
AssigneeEcolab USA Inc.
InventorsJasbir S. Gill, Shayan Moghadam, Thomas M. Miller
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Abstract
Anticorrosion compounds and compositions can be used in methods for preventing metal corrosion. More specifically, the method comprises contacting an anticorrosion composition to an aqueous system in contact with a metal. The anticorrosion composition comprises substituted and/or hydrogenated benzotriazoles and tolyltriazoles.
Claims20
A method for preventing metal corrosion, the method comprising contacting an effective amount of an anticorrosion composition with an aqueous system in contact with a metal, the anticorrosion composition comprising an alkyl benzotriazole, an alkyl tolyltriazole, an alkoxy benzotriazole, an alkoxy tolyltriazole, a nitro benzotriazole, a nitro tolyltriazole, a halo benzotriazole, a halo tolyltriazole, a hydrogenated benzotriazole, a hydrogenated tolyltriazole, an acid or a salt thereof, or a combination thereof;
- wherein the aqueous system comprises a brine and has a pH less than 3 and the alkyl benzotriazole is butyl benzotriazole, pentyl benzotriazole, hexyl benzotriazole, heptyl benzotriazole, octyl benzotriazole, or a combination thereof.
A method for preventing metal corrosion, the method comprising contacting an effective amount of an anticorrosion composition with an aqueous system in contact with a metal, the anticorrosion composition comprising an alkyl benzotriazole, an alkyl tolyltriazole, an alkoxy benzotriazole, an alkoxy tolyltriazole, a nitro benzotriazole, a nitro tolyltriazole, a halo benzotriazole, a halo tolyltriazole, a hydrogenated benzotriazole, a hydrogenated tolyltriazole, an acid or a salt thereof, or a combination thereof;
- wherein the aqueous system comprises a brine and has a pH less than 3 and is further contacted with a salt of a nitrogen base having a fluoro inorganic anion.
Dependencies are inferred from the claim text.