Umicore Ag & Co Kg

Antje Oltersdorf

Naina Deibel

Martin Foerster

Juergen Koch

Manuel Gensch

Jan Schoenhaber

Martin Roesch

Wolfgang Hasselmann

Sascha Zoelle

Jürgen Koch

Wolfgang Hasselman

The present invention relates to a method for producing a coated wall-flow filter. The wall-flow filter is coated with a powder aerosol.

Method for coating a wall-flow filter

The invention relates to a wall-flow filter as a particle filter with catalytically active coatings in the channels which are closed in a gas-tight manner at the opposing closed ends of the channels A at the first end, wherein the inlet region of the filter is additionally supplied with a dry powder-gas aerosol which contains metal compounds with a high melting point (such as the metal oxides Al2O3, SiO2, FeO2, TiO2, ZnO2, etc. for example) and which is to simultaneously improve the catalytic activity and the degree of filtration efficiency with respect to the exhaust gas back-pressure.

Catalytically active particle filter with a high degree of filtration efficiency

The invention relates to a method for producing a wall-flow filter for removing fine particulate solids from gases, and to the use thereof for cleaning exhaust gases of an internal combustion engine. The invention also relates to a correspondingly produced exhaust-gas filter having a high filtration efficiency.

High-filtration efficiency wall-flow filter

The present invention relates to a wall-flow filter, to a method for the production and the use thereof in order to reduce harmful exhaust gases of an internal combustion engine. The wall-flow filter was produced by applying a powder-gas aerosol to the filter, whereby the powder was deposited in the pores of the wall-flow filter.

Coated wall-flow filter

The present invention relates to a catalytically coated wall-flow filter, to a method for the production thereof and to the use thereof in order to reduce harmful exhaust gases of an internal combustion engine.

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Freiburg, Germany

Antje Oltersdorf