Corrosion inhibitors for aqueous systems
AssigneeOndeo Nalco Company
InventorsBo Yang, Peter E. Reed, John D. Morris
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Abstract
A method of inhibiting corrosion in aqueous systems comprising adding to the system a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts and a method of preparing a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts comprising adding hypophosphite to fumaric acid slurry or solution in water to create a reaction mixture; and effecting a reaction by introducing a free radical initiator to the reaction mixture.
Claims4
A method of inhibiting corrosion in aqueous systems comprising adding to the system a phosphonosuccinic acid composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts, wherein the phosphinosuccinic acid composition comprises about 36 to about 49 mole percent bis phosphinosuccinic acid adducts and about 26 to about 35 mole percent oligomeric phosphinosuccinic acid adducts.
Dependencies are inferred from the claim text.