Polyethyleneamine Alkoxylate Corrosion Inhibitors
OwnerJohn CLEMENTS, Luis SALAZAR +1inventors
InventorsJohn CLEMENTS, Luis SALAZAR, Jay RIETHMEYER
Life of this patent
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Abstract
The present disclosure relates to a corrosion inhibitor composition including a polyethyleneamine alkoxylate and to the use of the corrosion inhibitor composition to treat corrosive water sources and to inhibit the corrosion of various metal surfaces in contact with the corrosive water sources by contacting the metal surface or a portion thereof with the composition.
Claims15
A treated water source comprising a water source and a corrosion inhibitor composition comprising a polyethyleneamine alkoxylate having a general formula (I)
- wherein R1 and R2 are each independently hydrogen, or methyl with the proviso that at least one of R1 or R2 is hydrogen and each R1 and R2 is independently selected in each —O—CHR1—CHR2— unit;
- R3 and R4 are each independently hydrogen, or methyl with the proviso that at least one of R3 or R4 is hydrogen and each R3 and R4 is independently selected in each —O—CHR3—CHR4— unit;
- R5 and R6 are each independently hydrogen, or methyl with the proviso that at least one of R5 or R6 is hydrogen and each R5 and R6 is independently selected in each —O—CHR5—CHR6— unit;
- R7 and R8 are each independently hydrogen, or methyl with the proviso that at least one of R7 or R8 is hydrogen and each R7 and R8 is independently selected in each —O—CHR5—CHR6— unit;
- a, b, c, and d are each independently integers on average of less than about 15 with the proviso that a+b+c+d is on average at least about 30 and less than about 49;
- and
- n is an integer from about 1 to about 10.
A corrosion inhibitor composition comprising (i) a polyethyleneamine alkoxylate having a general formula (I)
- wherein R1 and R2 are each independently hydrogen, or methyl with the proviso that at least one of R1 or R2 is hydrogen and each R1 and R2 is independently selected in each —O—CHR1—CHR2— unit;
- R3 and R4 are each independently hydrogen, or methyl with the proviso that at least one of R3 or R4 is hydrogen and each R3 and R4 is independently selected in each —O—CHR3—CHR4— unit;
- R5 and R6 are each independently hydrogen, or methyl with the proviso that at least one of R5 or R6 is hydrogen and each R5 and R6 is independently selected in each —O—CHR5—CHR6— unit;
- R7 and R8 are each independently hydrogen, or methyl with the proviso that at least one of R7 or R8 is hydrogen and each R7 and R8 is independently selected in each —O—CHR5—CHR6— unit
- a, b, c, and d, are each independently integers on average of less than about 15 with the proviso that a+b+c+d is on average at least about 30 and less than about 49;
- and
- n is an integer from about 1 to about 10 and (ii) at least one solvent, additive or a mixture thereof.
A method of forming a treated water source comprising adding a corrosion inhibitor composition comprising a polyethyleneamine alkoxylate having a general formula (I)
- wherein R1 and R2 are each independently hydrogen, or methyl with the proviso that at least one of R1 or R2 is hydrogen and each R1 and R2 is independently selected in each —O—CHR1—CHR2— unit;
- R3 and R4 are each independently hydrogen, or methyl with the proviso that at least one of R3 or R4 is hydrogen and each R3 and R4 is independently selected in each —O—CHR3—CHR4— unit;
- R5 and R6 are each independently hydrogen, or methyl with the proviso that at least one of R5 or R6 is hydrogen and each R5 and R6 is independently selected in each —O—CHR5—CHR6— unit;
- R7 and R8 are each independently hydrogen, or methyl with the proviso that at least one of R7 or R8 is hydrogen and each R7 and R8 is independently selected in each —O—CHR5—CHR6— unit;
- a, b, c, and d are each independently integers on average of less than about 15 with the proviso that a+b+c+d is on average at least about 30 and less than about 49;
- and
- n is an integer from about 1 to about 10 to a water source.
12-15. (canceled)
Dependencies are inferred from the claim text.