Oil filters containing strong base and methods of their use

Details Oil filters containing strong base and methods of their use Oil filters containing strong base and methods of their use

B - Operations, Transporting

01

D

B01D 39/14 (2006.01) B01D 15/04 (2006.01) B01D 24/10 (2006.01) B01D 39/16 (2006.01) B32B 5/02 (2006.01) F01M 11/03 (2006.01)

Patent

CA 2713868

Novel filter elements for sequestering acids from oil or fuel, the strong base floes that comprise the filter elements, and methods of their preparation and use are disclosed. The filter elements comprise a mechanically linked interlocking fiber ma-trix interspersed with strong base particle floes wherein the strong base particles constitute at least 30% by weight of the filter ele-ment. Certain filter elements may be useful for sequestering acids or neutralized acids in certain oils or fuels, for example, the acids originating in the combustion and lubrication system of an internal combustion engine or those contained in oils in an oil circulation system. Other filter elements may be useful for reducing oxidation of an oil.

L'invention concerne de nouveaux éléments de filtres qui permettent de séquestrer des acides d'huile ou de carburant, les flocons de base forte qui comprennent les éléments de filtres et leurs procédés de préparation et d'utilisation. Les éléments de filtres comprennent une matrice de fibres enchevêtrées reliées mécaniquement, intercalée avec des flocons de particules de base forte, ces particules constituant au moins 30% en poids de l'élément de filtre. Certains éléments de filtres peuvent servir à séquestrer des acides ou des acides neutralisés dans un certain nombre d'huiles et de carburants, par exemple, les acides émanant de la combustion et du système de lubrification d'un moteur thermique ou de ceux contenus dans des huiles d'un système de circulation d'huile. D'autres éléments de filtres peuvent servir dans la réduction de l'oxydation d'une huile.

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