Corrosion inhibitor for mitigating alkaline carbonate stress corrosion cracking

Abstract

Compounds, compositions and methods are provided for reducing, inhibiting, or preventing corrosion of a surface, using a corrosion-inhibiting composition comprising a dispersant having the structure of Formula 1 and a corrosion inhibitor having the structure of Formula 2 wherein X1 is hydroxyl, —OC(O)R1; X2 is hydroxyl, or —OC(O)R2; X3 is hydroxyl or —OC(O)R3; R1, R2, and R3 are independently C10 to C30 alkyl or alkenyl; m, n, and o are independently integers from 1 to 10; R20 , R21, R22, R23, and R24 are independently hydrogen or —C(O)—R31; R31 is C10 to C30 alkyl or alkenyl; p is an integer of 0 or 1; q is an integer of 1 to 4; r is an integer of 0 or 1; s is an integer of 0 or 1; t is an integer from 1 to 4; and p1, q1, r1, r2, s1, and t1 are independently integers from 1 to 6; wherein when p, r, and s are 0, q+t is an integer from 4 to 8 and at least one of R20 , R21, R22, R23, and R24 is —C(O)—R31.

Dependencies are inferred from the claim text.