Clariant Corporation

Torsten Pilz

Georg Borchers

Gerd Reinhardt

Peter Naumann

Miriam Ladwig

Ina Golla

Reto Wieduwilt

Henri Jourdan

Process for the preparation of bleach activator granules, which comprises extruding a mixture comprising bleach activator, anionic or nonionic surfactant and polyalkylene glycol at temperatures of from 40 to 120&#xb0; C. and a pressure of from 5 to 30 bar, and granulating the resultant extrudates at a temperature of from 40 to 120&#xb0; C. on a spheronizer.

Process for the preparation of bleach activator granules

Process for the preparation of bleach activator granules, which comprises extruding a mixture comprising bleach activator, anionic or nonionic surfactant and polyalkylene glycol at temperatures of from 60 to 80&#xb0; C. and a pressure of from 10 to 30 bar, and granulating the resultant extrudates at a temperature of from 60 to 80&#xb0; C. on a spheronizer.

Process for the preparation of acyloxybenzenesulfonates by reaction of phenolsulfonate with a water content of less than 0.5% by weight and alkanecarbonyl halide in a hydrocarbon as solvent and in the presence of a catalyst in the form of a basic nitrogen-containing compound.

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Oberreifenberg, Germany

Torsten Pilz