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Hubert Freese

Rene-Andres Artiga Gonzalez

Manfred Greger

Wilfried Raehse

Volker Bauer

Bernd Larson

Peter Sandkuehler

Katrin Burmeister

Kathrin Schnepp-Hentrich

Fred Schambil

Rudolf Loeffelmann

Adolf Wiche

Kathrin Schnepp

Wolfram Linke

Ulrich Martini

A spray-dried amorphous alkali metal silicate compound which provides multiple-cycle washing performance. The silicate compound has a molar ratio of M O to SiO of 1:1.5 to 1:3.3 wherein M represents an alkali metal. The compound contains 0.5 to less than 30% by weight of anionic surfactant and has an absorption capacity for liquid components which is at least 20% higher than that of the same quantity of the alkali metal silicate compound which is free from anionic surfactant.

Amorphous alkali metal silicate compound

A spray-dried amorphous alkali metal silicate compound which provides multiple-cycle washing performance. The silicate compound has a molar ratio of M,O to SiO,of 1:1.5 to 1:3.3 wherein M represents an alkali metal. The compound contains 0.5 to less than 30% by weight of anionic surfactant and has an absorption capacity for liquid components which is at least 20% higher than that of the same quantity of the alkali metal silicate compound which is free from anionic surfactant.

Spray-dried amorphous alkali metal silicate compound and its use in detergent compositions

Method for preparing an amorphous alkali silicate with impregnation

Spray-dried detergent or a component therefor

A method and apparatus for simultaneously washing a plurality of generally tubular or sock-like filtering elements of a gas filtering apparatus without removing the elements from the apparatus, the filter elements being disposed in a regular array of rows and columns within a housing between an inlet and an outlet thereof. The method includes positioning in the housing a liquid conduit having a plurality of axially spaced spray nozzles for delivering washing liquid along one or more rows of elements and supplying washing liquid to the conduit.

Method and apparatus for washing a plurality of filter elements

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Duesseldorf, Germany

Hubert Freese