Corrosion inhibitor composition and method of use
AssigneeBetz Laboratories, Inc.
InventorsJ. Michael Brown, James R. Ohlsen, Richard D. McBride
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Abstract
A composition and method for inhibiting corrosion of iron and iron-containing metals in contact with aqueous systems containing sulfide compounds. The composition comprises (A) an aqueous solution of an alcohol, an acid, a fatty imidazoline, and an ethoxylated fatty diamine, and (B) an aqueous solution of a molybdate compound or salt thereof.
Claims6
An iron corrosion inhibiting composition comprising a combination of (A) an aqueous solution of an alcohol selected from the group consisting of diethylene glycol monobutyl ether, butanol, butyl cellusolve, isopropanol, methanol, propylene glycol, 2-ethylhexanol, hexylene glycol, and glycolic acid, an acid selected from the group consisting of acetic acid and orthophosphoric acid, a fatty imidazoline prepared by reacting long chain fatty acids and polyamines, and an ethoxylated fatty diamine, and (B) an aqueous solution of a molybdate compound or salt selected from the group consisting of sodium molybdate dihydrate.
Dependencies are inferred from the claim text.