Non-triazole imidazoline and amide compounds and methods for inhibiting corrosion in industrial water treatment
AssigneeChemtreat, Inc.
InventorsPatrick WOOD, Curt Turner
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Abstract
Methods of treating aqueous systems with treatment compositions including non-triazole derivatives of imidazoline and/or amide compounds are provided that are effective to inhibit corrosion of corrodible metal surfaces in the aqueous systems. The non-triazole imidazoline and/or amide compounds show comparable or better corrosion inhibition as compared to conventional triazole corrosion inhibitors, and have low toxicity and good stability in the presence of halogens such as halogen-containing biocides or free chlorine.
Claims22
A method of inhibiting corrosion of a corrodible metal surface that contacts a water stream in a water system, the method comprising:
- introducing into the water stream a treatment composition including at least one of (i) at least one non-triazole derivative of imidazoline compound comprising at least one carboxylic or carboxylate group, at least two nitrogen atoms, and an alkyl group, and (ii) at least one amide compound comprising at least one carboxylic or carboxylate group, at least two nitrogen atoms, and an alkyl group.
Dependencies are inferred from the claim text.