Cognis Deutschland Gmbh

Henkel Kommanditgesellschaft Auf Aktien (henkel Kgaa)

Henkel Ag & Company, Kgaa

Olaf Joachim Blochwitz

Georg Assmann

Ditmar Kischkel

Andreas Syldath

Karl-Heinz Schmid

Horst-Dieter Speckmann

Birgit Middelhauve

Gerhard Blasey

Jörg Poethkow

Hermann-Josef Welling

The present invention relates to methods for producing bleach-activator-containing granules from a water-containing bleach activator preparation form by granulation and simultaneous drying in a fluidized-bed and subsequent consolidation of the primary granules by treatment with an aqueous polymer and/or phosphonate solution, in a fluidized bed.

Method for producing bleach activator granules

A process for making substantially odorless granules of alkyl sulfates corresponding to formula (I): R-O-SO X (I) wherein R is an alkyl group containing from 6 to 18 carbon atoms, and X is selected from the group consisting of an alkali metal, an alkaline earth metal, ammonium, an alkyl ammonium, and alkanolammonium, and a glucammonium ion, the process involving: (a) providing a water-containing paste of alkyl sulfates having a content of unsulfonated components of greater than 0.3% by weight; and (b) simultaneously granulating and drying, in a fluidized bed, the water-containing paste of alkyl sulfates to form substantially odorless granules of alkyl sulfates, and wherein the substantially odorles granules thus formed have less than 0.2% by weight, based on the weight of active substance, of unsulfonated components present therein.

Process of making alkyl sulfate granulates

A process for making detergent granules having a bulk density above 500 g/l involving: (a) providing a fluidized bed; (b) providing an apertured inflow base located below the fluidized bed for introducing fluidization gas into the fluidized bed; (c) providing a grid interposed between the fluidized bed and the apertured inflow base, the grid having a mesh size of less than 600 &mgr;m; (d) providing a surfactant preparation in liquid to paste form; and (e) introducing the surfactant preparation into the fluidized bed to form the detergent granules.

Method for producing tenside granulates with a higher bulk density

Growing community of inventors

Genthin, Germany

Olaf Joachim Blochwitz