METHOD FOR STEEL PROTECTION AGAINST ACID CORROSION

摘要

A method for protection of steel against acid corrosion comprises the addition of inhibitors into aggressive medium at high temperatures. 1-(2-оxo-2-phenylethyl)-2-(3-phenylethylcarbamide)-pyridinium bromide (SP-29), 1-(2-оxo-2-phenylethyl)-2-[3-(4-methylphenyl)-carbamide]-pyridinium bromide (SP-30) or 1-(2- оxo-2-phenylethyl)-2-[3-(4-chlorophenyl)- carbamide]-pyridinium bromide (SP-31) are used as inhibitors.