Recently, numerous researches of overbased calcium sulfurized alkylphenates focused on their total base number (TBN) were reported. And it's well known that a increase of TBN(typically, greater than 300 mg KOH/g) was effective to reduce their cost. However, calcium sulfurized alkylphenates having a TBN greater than 300 have several problems on their unsatisfied performance, such as thermal stability.COSMO PETROTECH Co., COSMO RESEARCH INSTITUTE, and COSMO OIL Co. have developed a calcium sulfurized alkylphenate “PAD-450” having the TBN greater than 400mgKOH/g.“PAD-450” has similar performance with conventional calcium sulfurized alkylphenates (TBN =250mgKOH/g) on usual laboratory tests and a marine engine test. The innovational performance of PAD-450 is based on our specific procedure to increase TBN. In addition, we had examined a commercial process of PAD-450 with our plant that designed for calcium sulfurized alkylphenate (TBN=250mgKOH/g) and the results shows that the process is applicable for a conventional plant.We propose that PAD-450 is the first development of high-performance and high-TBN calcium sulfurized alkylphenates.


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    Title :

    Research and Development of High TBN Ca-Phenates


    Additional title:

    Sae Technical Papers


    Contributors:
    Asada, H. (author) / Takeya, H. (author) / Imai, J. (author) / Takei, M. (author) / Ueda, S. (author) / Henmi, T. (author) / Nishio, T. (author) / Takagi, Y. (author)

    Conference:

    International Fuels & Lubricants Meeting & Exposition ; 1997



    Publication date :

    1997-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English