Compositions and methods for dissolving deposits and inhibiting corrosion
AssigneeEcolab USA Inc.
InventorsAshish DHAWAN, Carter Martin SILVERNAIL, Emily Rebecca WOOD, Jonathan Todorova MASERE
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Abstract
The present disclosure provides methods and compositions for dissolving deposits and inhibiting corrosion of metallic surfaces in aqueous systems. A method may include adding a composition to the aqueous medium. The composition may include a polycarboxylate polymer and a nitrogen-containing compound. The composition may optionally include a solvent and/or an additive. The compositions and methods may be used for inhibiting corrosion of metallic surfaces and dissolving typical insoluble inorganic salts encountered in the oil and gas, recovery, water, and processing industries.
Claims20
A method of dissolving a deposit and inhibiting corrosion of a metallic surface, the method comprising:
- adding a composition to an aqueous medium, the aqueous medium comprising the deposit and the metallic surface, the composition comprising:
- a polycarboxylate polymer;
- and
- a nitrogen-containing compound, the nitrogen-containing compound comprising an amine, an imine, or a combination thereof;
- dissolving at least a portion of the deposit;
- and
- inhibiting corrosion of the metallic surface,
- wherein the composition is added to the aqueous medium at a concentration of at least about 0.005 wt. %.
A composition, comprising:
- a polycarboxylate polymer;
- and
- a nitrogen-containing compound, the nitrogen-containing compound comprising an amine, an imine, or a combination thereof.
Dependencies are inferred from the claim text.