THE ROLE OF DIETHYL- AND PROPYLAMINE COMPLEXES OF THE MIXTURE OF OLIGOALKYLARYLSULFONIC ACIDS IN MICROBIAL CORROSION

Diethyl- and propylamine complexes of a mixture of oligoalkylarylsulfonic acids, synthesized on the basis of the light gas oil fraction obtained from the catalytic cracking process, are proposed as bactericides in combating sulfate-reducing bacteria that cause microbial corrosion. Some physico-chemical properties of the solutions prepared in water, water+ethyl alcohol, water+isopropyl alcohol mixture of these complex samples were determined, bactericidal properties were studied. Solutions of diethylamine complex of oligoalkylarylsulfonic acids mixture prepared in water+ethyl alcohol, water+isopropyl alcohol mixture showed 91% and 93.7% bactericidal effect at a concentration of 150 mg/l, respectively. The aqueous solution of the propylamine complex at a concentration of 150 mg/l showed the highest (95%) bactericidal effect among the samples, reducing the number of bacteria from 108 to 101. Also, solutions of the propylamine complex in the same concentration of water + ethyl alcohol, water + isopropyl alcohol showed an effect of 92.2% and 91%, respectively, and significantly minimized the number of bacteria.