Salts of esters of long-chain fatty alcohols with alpha-sulfofatty acids as corrosion inhibitors in oils or oil emulsions

摘要

A method for corrosion inhibition in oil or oil emulsions comprising adding thereto a corrosion-inhibition-effective amount of at least one salt corresponding to the general formula <IMAGE> in which R1 is a linear or branched C8-36 alkyl or C8-36 alkenyl or a mono- or polyethoxylated C8-18 alkyl containing from 1 to 10 ethoxy groups, R2 is a linear or branched C10-20 alkyl and M is half an equivalent of a divalent metal which is magnesium, calcium, barium, or zinc.