Interrelation between oxidation stability and gassing resistance of transformer oils

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 8, pp. 16–17, August, 1991.     

Efficacy of inhibitors in high-temperature catalytic oxidation of hydrocarbon oils

The efficacy of different inhibitors in mineral and synthetic base oils in conditions of high-temperature catalytic oxidation was investigated. It was found that all of the inhibitors investigated only slowed the oxidation reaction in mineral oils, while three of the inhibitors totally stopped the reaction in synthetic oil. The efficacy factors of the inhibitors for different base oils were determined. Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 29–31, September–October, 2008.     

Special features of use of phenolic inhibitors in mineral oils

The effectiveness (performance) of various phenolic inhibitors in medium-viscosity base mineral oils under high-temperature catalytic oxidation conditions has been studied. It has been proved that all the studied base oils possess differing catalytic activity whose quantitative value determines the effectiveness of the phenolic inhibitors. Under specific conditions, in the presence of inhibitors, oxidation of the oil increases rather than decreases.     

Efficiency criteria for motor oils

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 9, pp. 24–29, September, 1989.     

Effect of additives and inhibitors on metal corrosion during the oxidation of oils

Conclusions A study has been made of the effect of additives and inhibitors on the corrosion of steel, lead, and copper during the oxidation of oil with moist air. It has been shown that electrochemical corrosion processes are a decisive factor in corrosive wear and therefore, to protect motors and mechanisms from corrosive wear, oil-soluble multifunctional additives should be used which ensure simultaneous protection from chemical and electrochemical corrosion.Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 53–56, January, 1969.     

Stability of transformer oils under ultraviolet irradiation

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 10, pp. 18–20, October, 1991.     

Production of low pour point transformer oils

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 7, pp. 13–14, July, 1991.     

Thermophysical properties of transformer and turbine oils

Transformer and turbine oils must have good physicochemical, antioxidant, anticorrosive, and heat transfer properties. The latter are primarily determined by the thermal conductivityλ and isobaric heat capacity c′_p. The thermophysical properties of turbine and transformer oils have been relatively completely investigated at low temperatures and atmospheric pressure. However, the experimental values of parametersλ and c′_p occasionally differ significantly for the same oils, probably due to their origin and manufacturing technology. Translated fromKhimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 26 – 28, November – December, 1999.