Umicore Ag & Co Kg

Degussa - Huls Ag

Wolfgang Hasselmann

Martin Foerster

Stéphane Masson

Bernd Mergner

Naina Deibel

Gerhard Birtigh

Antje Oltersdorf

Juergen Koch

Manuel Gensch

Dieter Detterbeck

Ewald Dittrich

Sigurd Adler

Joachim Geiser

Walter Leibold

Michael Hoffmann

Robert Schafer

Sascha Zoelle

Jürgen Koch

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 present invention is directed to an apparatus and a respective process, which can be used in the production of exhaust catalysts. In particular, the present apparatus is used in a process to supply the liquid coating slurry to substrates, like honeycomb monoliths.

Coating apparatus and method

The present invention is directed to a process, which can be used in the production of exhaust catalysts. In particular, the present process describes way of testing the leak-tightness of the coating equipment before a new coating campaign begins or during a running campaign.

Process for leak detection in catalyst production

The invention relates to a novel assembly for coating substrates.

Coating device and method

The invention relates to a process and an apparatus for coating a plurality of catalyst support bodies.

Coating substrates for catalysts in bundles

Disclosed herein is a process for coating ceramic honeycomb bodies with a catalyst suspension comprising catalyst components as solids and/or in dissolved form in a carrier liquid. Parallel flow channels run through the honeycomb bodies. The walls of the flow channels have an open pore structure. To coat the channel walls and in particular also the interior surfaces of the pores with the catalyst suspension, the entry and exit end faces of the vertically aligned honeycomb bodies are each brought into contact with a perforated mask, with the perforated masks being arranged so that the open regions of the perforated mask on the one end face are opposite the closed regions of the perforated mask on the other end face and vice versa. The catalyst suspension is then pumped or sucked from below into the honeycomb bodies until it exits at the upper end face. Excess suspension is then removed by blowing-out or sucking-out, the contact with the perforated masks is released and the honeycomb body is calcined to fix the coating.

Method for introducing a catalytic coating into the pores of a ceramic honeycomb flow body

Tunnel kilns serve for the thermal treatment of products in a continuous operation within a production process. The tunnel kilns are usually made up of a number of identical kiln segments, each segment having a blower, heating elements for heating up the fresh air and a common exhaust air line. For the treatment of the products, they are made to pass by either on the suction side or the pressure side of the blower. To reduce the overall volume of such kilns and to save energy, it is proposed to arrange the blower inside the kiln in such a way that it produces a circulatory flow transversely to the direction of continuous transport and to transport the products to be dried through the circulatory flow parallel to one another in the direction of continuous transport both on the pressure side and on the suction side of the blower. These kilns are preferably used in the production of catalytic converters for automotive exhaust for which a catalyst layer applied to monolithic honeycomb bodies has to be dried and calcined.

Tunnel furnace for the temperature treatment of goods

A process for the coating of the flow channels of a cylindrical, honeycomb form catalyst carrier with a dispersion coating through filling of the vertically oriented flow channels with a fill quantity of the coating dispersion through the bottom face of the catalyst carrier and subsequent downward emptying and clearance extraction of the flow channels, as well as drying and calcination of the catalyst carrier, by the following steps:

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Rheinfelden, Germany

Wolfgang Hasselmann