The presence of a metal such as calcium or zinc in a lubricant appears to inhibit the poisoning effect of phosphorus on platinum oxidising catalysts. This is a general conclusion from rig, engine and vehicle tests on lubricants with different additive components. Among the test results reported a lubricant blend with 2.5% by weight ZDDP (0 22% wt Zn) and another blend with 1.25% wt ZDDP plus enough phosphorus containing ashless anti-oxidant to double the phosphorus content of the lubricant both gave satisfactory performance in tersm of catalyst degradation.


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    Titel :

    The Effect of Lubricant Additives on the Durability of Platinum Oxidising Catalysts*


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Wilson, J.V.D. (Autor:in) / Fitzgerald, W. (Autor:in)

    Kongress:

    1975 Automotive Engineering Congress and Exposition ; 1975



    Erscheinungsdatum :

    01.02.1975




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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