APPLICATION OF NATURAL PETROLEUM ACIDS AS HEXAMETYLENDIAMIN COMPLEX COMBINES AS BACTERIA

Complex compounds were synthesized by mixing natural petroleum acids with hexamethylene diamine at a ratio of 1:1 and 2:1 at room temperature, IR spectra of the complexes were studied and confirmed, physical and chemical parameters were determined, solutions were prepared and bactericidal properties were studied. The bactericidal effect of a complex compound of natural petroleum acids synthesized with hexamethylenediamine in a ratio of 1: 1 mol at a concentration of 250 mg / l is 95%, a complex combination obtained at a concentration of 500 mg / l and 1000 mg / l is 100%, bactericidal at a concentration of 2: 1 mol at a concentration of 250 mg / l The effect was 98%, 100% at 500 and 1000 mg / l concentrations. According to the results, complex compounds of natural petroleum acids synthesized with hexamethylenediamine can be used to prevent the growth of bacteria. Keywords: natural petroleum acid, hexamethylenediamine, sulfate-reducing bacteria, complex compounds, bactericidal properties.

PREPARATION OF COMPOSITIONS OF OXYETHYLATED NONYLPHENOL WITH ALKYLIMIDAZOLES AND STUDY OF THEIR ACTION AGAINST SULFATE-REDUCING BACTERIA

The article discusses the bactericidal effect of compositions of alkylimidazole and oxyethylated para-nonylphenol in various proportions obtained by the interaction of polyethylenepolyamine in a nitrogen medium with various concentrations against sulfate-reducing bacteria. Alkylimidazole was obtained on a pilot plant with a capacity of 500 kg/day, built at the research and production enterprise "Tural 110" in Sumgait. Alkylimidazole (AIM) is derived from the interaction of natural petroleum acid (NPA) with polyethylene polyamine (PEPA). The effect of ONP and AIM compositions prepared in mass ratios of 95:5; 90:10 and 50:50 on the incubation period of SRB for 15 days was studied as follows. Reagent-free and reagent media were used for comparison. 1 ml of the bacterial medium was diluted with sterile water and simultaneously transplanted into a Posgate B nutrient medium in 10 ml test tubes in a 1:9 ratio and kept in a thermostat at 30-35°C for 15 days to determine the number of bacteria growing in the medium. As a result, the number of bacteria in the non-inhibitory medium taken under microscopic control was n=108 the number of cells/ml and in the inhibitory medium at a concentration of 50 mg/l in all three samples (AIM:ONP = 5:95; 10:90 and 50:50 in mass ratios) the number was defined as n=101 cells/ml and at a concentration of 250 mg/l AIM:ONP = 10:90 and AIM:ONP = 50:50, the mass ratios fell from 108 to 0, which completely stopped the life of bacteria. Keywords: natural petroleum acid, polyethylene polyamine, alkylimidazole, oxyethylated nonylphenol, composition, sulfate-reducing bacteria, bactericidal inhibitor.

Investigation of the inhibitory-bactericidal effect of amidoamine-based inorganic complexes against microbiological and atmospheric corrosion

In the process, inorganic complexes of amidoamines obtained from the interaction of natural petroleum acid and oleic acids with diethylenetriamine have been developed and their effectiveness as inhibitor-bactericides has been investigated. The effect of the synthesized reagents on the kinetics of the corrosion process of steel and the activity of sulphate-reducing bacteria in 3% NaCl solution saturated with CO2 and in the biphasic water–isopropyl alcohol medium with H2S dissolved has been analyzed. The thermodynamic and kinetic parameters of the corrosion process were calculated. The adsorption of the complexes was investigated using the Langmuir isotherm and the correlation constant was determined. State of the metal surface was investigated by SEM method in CO2 and H2S media, with and without inhibitors, and the metal surface contact of complexes was studied by computer molecular simulation.

Synthesis of mixed dietylene glycol diester based on the natural petroleum acid

The paper is dedicated to the synthesis of mixed diester of dietylene glycol with high yield based on the natural petroleum and pentanoic acids using ZnO catalyst aiming the increase of plasticizer and antioxidant sorts. To define the optimum conditions for obtaining mixed diester with high yield, the reactions in the presence of ZnO catalyst of various quality have been carried out in the certain ratio components included in the reaction and temperature intervals. The optimum conditions, i.e. catalyst amount in 1.5 % mass regarding to the acid, molar ratio of the components alcohol: acid - 1.5:2, the temperature 130–140 oC in the highest yield of 92 % have been selected. The physical-chemical indexes of synthesized ester have been specified and material balance of obtainment process showed. For the improvement of thermal-oxidizing steadiness of diesel fuels, diester of diethylene glycol was tested and justified that by adding 0.004 % mass of mixed diester into the diesel fuel, thermal-oxidizing steadiness significantly increases.

THE APPLICATION OF AMINO – AND HYDROXYETHYL IMIDAZOLINES OF PETROLEUM ACIDS AS MULTIFUNCTIONAL ADDITIVES FOR DIESEL FUEL

In this research, the influence of amino- and hydroxyethyl imidazolines of petroleum acids on the antistatic property and lubricity of diesel fuel has been studied. The researches illustrated that when the boiling point of petroleum acid fractions increases, the influence of imidazolines on the antistatic property and lubricity of diesel fuel decreases. Besides, it has been known that, the influence of aminoethyl imidazolines of petroleum acids on the antistatic property and lubricity of diesel fuel is better than the influence of hydroxyethyl imidazolines, On the other hand, it has been revealed that, when imidazolines of petroleum acids are added to the diesel fuel, the antistatic effect increases over time.

Structural and physiological properties of natural petroleum acids from middle oil fractions of "Kelebija" oil

The investigated petroleum acids have been isolated from middle oil fractions (b.p. 270-380?C) of Vojvodina crude oil "Kelebija." Group-structural analysis was performed with low resolution mass spectrometry using Field Ionization and Chemical Ionization. The identified carboxylic acids, CnH2n+zO2, belong to the series of monocyclic, bicyclic, tricyclic and tetracyclic carboxylic acids. Physiological activity of isolated petroleum acids was determined using aqueous solutions of potassium salts. High auxin activity was determined using the coleoptile test (20.5% increase in coleoptile) with petroleum acid concentration of 10-7M, and very high biological activity of gibberellin type was determined using the endosperm test (31.6% increase in concentration of reducing sugars) with petroleum acid concentration of 10-7M.

Optimization of petroleum acid isolation from lower oil fractions of Vojvodina "Velebit" oil

Petroleum acids can be obtained from oil and oil derivatives by alkaline extraction. The aim of this work was to optimize the process of alkaline extraction of petroleum acids from light commercial oil fractions of Vojvodina "Velebit" oil by changing the contact time of oil fraction with strong alkali and by changing the reaction temperature. Optimal conditions for isolation of petroleum acids have been determined to be 9 hours of contact time and reaction temperature of 90?C. Under these conditions the obtained petroleum acids yield was 88.38%. Identification of isolated acids was performed by GC-MS analysis.