AMINE COMPLEXES ON THE BASIS OF NITRATED CORN OIL AS A COMPONENT TO THE CONSERVATION LIQUIDS AND AS AN INHIBITOR AGAINST CO2 CORROSION

The refined corn oil was nitrated with nitric acid. The nitration reaction was carried out with 67-70% of nitric acid at 70-90 degrees C temperature. The complexes with hexylamine, ethylamine and propylamine in 1:1 mol. ratio were obtained with nitrated corn oil and their 5, 10, 15 and 20% solutions made in the T-30 turbine oil distillate and applied as conservation liquid. The tests were made in a hydraulic chamber (Q-4) in seawater and in 0.001% of sulfur acid solution with a steel-3 sample. The best results were obtained in conservation liquids obtained on the basis of ethylamine complex. 20% solution of the complex on the basis of nitrated corn oil and propylamine in 1:1 mol. ratio in the alcohol-water mixture was prepared and tested as an inhibitor against CO2 corrosion. It was determined that, use of 50, 100, 150 ppm of 20% of solution provides 49.0 %, 70.0 %, 80.0 % of corrosion protection, accordingly. 50, 100, 150 ppm concentration of 20% of solution on the basis of propylamine in 1:1 mol. ratio provides 80.0 %, 94.0 %, 97.0 % of corrosion protection, accordingly. Corrosion protection was 81.0 %, 83.0 %, 96.0 % by the use of 50, 100, 150 ppm dose of 20% of solution on the basis of propylamine in 1:2 mol. ratio, accordingly