Organophosphorus additives for improved fuel lubricity

C - Chemistry – Metallurgy – 10 – L

Patent

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C10L 1/26 (2006.01) C10L 1/14 (2006.01) C10L 10/04 (2006.01) C10L 1/16 (2006.01) C10L 1/18 (2006.01)

Patent

CA 2205864

The lubricity (anti-wear properties) of hydrocarbon fuels, oxygenate fuels or mixtures thereof, particularly diesel or aviation fuels having reduced sulphur and/or aromatic content for compliance with regulator requirements, is improved by the addition of a phosphorus ester or esters (phosphates and/or phosphites), or a concentrate containing the ester or esters, having a total acid number of at least 1.0 mg KOH/g. The additives also improve corrosion inhibition.

L'onctuosité (propriétés anti-usures) des carburants d'hydrocarbure, des carburants d'oxygène ou de mélanges de ces deux types de carburants, en particulier le diesel ou les carburants aviation, qui contiennent de petites quantités de soufre et/ou de composants aromatiques conformément aux besoins de la règlementation en vigueur, est améliorée grâce à l'adjonction d'un ou d'esters phosphoré(s) (phosphates et/ou phosphites), ou d'un concentré contenant le ou les esters, dont l'indice d'acidité totale est d'au moins 1,0 mg KOH/g. Ces additifs permettent également d'améliorer l'inhibition de la corrosion.

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