Bayer Aktiengesellschaft

Reiner Skerhut

Klaus Schubert

Harald Gleinig

Bernhard Vosteen

Dorde Jovcic

Burkhard Braun

Jurgen Lahrs

Claus Gosling

Adolf Sinn

The thin film contact dryer consists of a rotor having flat rotor elements extending in a radial direction. In the central third of the rotor is arranged at least one combination of distributing elements and an annular weir which revolves with the rotor and leaves a narrow annular gap open to the internal dryer wall, the annular weir being arranged immediately downstream of the distributing elements as viewed in the direction of flow.

Thin film contact dryer

Pulverulent preparations with a low dust content, in particular dyestuff powders, are obtained when the customary dustproofing agents are not added before the drying process and also are not sprayed directly onto the product to be dustproofed, but are allowed to act on the pulverulent product in the form of an aerosol. The average particle size of the aerosol is less than 10.mu..

Process for the manufacture of preparations with a low dust content

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Cologne, Germany

Reiner Skerhut