Patent ID: 6338819
Filing Date: 2002-01-15
Classification: C23F

Abstract:
A method of inhibiting corrosion of metal equipment in an aqueous medium comprising components selected from the group consisting of Skeletonema costatum, fish, other algae, and a combination thereof, said method comprising incorporating into said medium an amount of a water soluble corrosion inhibitor effective to inhibit said corrosion, wherein said corrosion inhibitor comprisesan N-ethoxy, 2-substituted imidazoline, said N-ethoxy substituent comprising from about 3 to about 9 moles of ethylene oxide effective to render said imidazoline water soluble, said 2-substituent comprising a fatty acid chain consisting essentially of 18 carbon atoms or less; and an ethoxylated alcohol wetting agent having from about 8 to about 10 carbon atoms.