Browsing by Author "Besergil B."

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    Determination of synthesis conditions of alkali calcium sulfonate
    (2004) Besergil B.; Celik A.
    Additives called detergent-dispersants are among the most important components of engine oils. These prevent the corrosion of engine parts, and neutralize H2SO4, HNO3, and organic acids produced by the oxidation of hydrocarbon-based fuels. Alkyl sulfonates are one of the most widely-used detergent-dispersants. The synthesis conditions for alkali calcium sulfonate were determined. Ca(OH)2 and water were added to a mixture of neutral calcium sulfonate (NCS) and spindle oil (SO) and placed in a reactor. A CO2/air mixture was passed through the mixture at 85°C. When CO2/air mixture of 1:85 was passed through a mixture of 180 g NCS + 600 g SO + 60 g Ca(OH)2 + 90 g of water at velocity 108 L/hr for 100 min, transparent alkali calcium sulfonate was obtained with TBN of 28.6 mg KOH/g. The percentage of CaCO2 or TBN in the product increased with increasing reaction period. Prolonged reactions periods made filtration of the product difficult and increased turbidity.
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    Determination of synthesis conditions of alkali calcium sulfonate
    (2004) Besergil B.; Celik A.
    In this study, alkali calcium sulfonate which is added to engine oils as a detergent-dispersant was obtained. A definite amount of Ca(OH)2 and water was added to the mixture of neutral calcium sulfonate (NCS) and spindle-oil (SO), and the mixture was taken into an appropriate reactor. CO 2-air mixture was passed through the mixture for definite periods at 85°C and the appropriate parameters affecting the qualities and efficiency of the product were determined. Thus, after the mixture of CO2 + air (having the ratio of 1/8.5) was passed through the mixture of 180 g NCS + 600 g SO + 60 g Ca(OH)2 + 90 g water with the velocity of 108 L/h for 200 min, transparent alkali calcium sulfonate with a total base number value of 28.6 mg KOH/g was obtained.
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    Determination of synthesis conditions of neutral calcium sulfonate, so-called detergent-dispersant
    (2004) Celik A.; Besergil B.
    In this study, the conditions of obtaining neutral calcium sulfonate which is added to engine oils as a detergent-dispersant was studied. For this purpose, post-dodecyl benzene sulfonic acid, obtained from post-dodecyl benzene which remains as the bottom product during the production of dodecyl benzene sulfonate was used as the initial substance. Additionally, the reactor to be used in the production of neutral calcium sulfonate was designed and the amounts of spindle-oil, toluene, raw sulfonic acid solution and Ca(OH)2 used during neutralization were determined.