Process and composition for inhibiting high-temperature iron and steel corrosion

摘要

A composition and method for inhibiting corrosion of iron and steel in the presence of aqueous acid at high temperatures, containing an alkenylphenone having the following structure: (I) wherein R1 may be aryl of 6 to about 10 carbons, and R2 and R3 may be the same or different and each may be hydrogen, halogen, or aliphatic of about 3 to about 12 carbons, and R2 may also be alkanol, ether, or aryl of 6 to about 10 carbons, provided that the total number of carbons in said alkenylphenone does not exceed 16, and a substituted 1-azanaphthalene of the structure: wherein R4 is alkyl of about 4 to about 16 carbons, or alkylaryl of about 7 to about 20 carbons, and X is chloro or bromo.