Methods and compositions for inhibiting metal corrosion

C - Chemistry – Metallurgy – 23 – F

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C23F 11/04 (2006.01)

Patent

CA 2549127

Methods and compositions are provided that inhibit the corrosion of metal surfaces by aqueous acid solutions. The inhibition is basically achieved by the addition of a reaction product of an alpha,beta-unsaturated aldehyde, or ketone with a primary or secondary amine to the aqueous acid solution.

Procédés et compositions servant à inhiber la corrosion de surfaces métalliques au moyen de solutions acides aqueuses. Cette inhibition est effectuée par apport d'un produit réactionnel de cétone ou d'aldéhyde alpha, bêta insaturé contenant une amine primaire ou secondaire à cette solution acide aqueuse.

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