Method for the Production of Bleaching Catalyst Granules
First Claim
1. A process for producing a bleach catalyst granule comprising a bleach catalyst, an acidic polymer, a carrier material and optionally further additives, said process comprising forming a fluidized bed from the carrier material in a fluidized bed apparatus, metering an aqueous solution or suspension which comprises the bleach catalyst, the acidic polymer and optionally any further additives into the fluidized bed, granulating and drying to provide the bleach catalyst granule.
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Abstract
The invention relates to a method for the production of bleaching catalyst granules, containing a bleaching catalyst, an acidic polymer, a support material and optionally further adjuncts, characterized in that a fluid bed is formed from the support material in a fluidized bed apparatus, an aqueous solution or dispersion is added to the fluid bed, containing the bleaching catalyst, the acidic polymer, and optionally the further adjuncts which is then granulated and dried. The method is particularly suitable for bleaching catalysts of formula (1), where R, R1, R2, R3 and X have the meanings given in the description.
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13 Claims
- 1. A process for producing a bleach catalyst granule comprising a bleach catalyst, an acidic polymer, a carrier material and optionally further additives, said process comprising forming a fluidized bed from the carrier material in a fluidized bed apparatus, metering an aqueous solution or suspension which comprises the bleach catalyst, the acidic polymer and optionally any further additives into the fluidized bed, granulating and drying to provide the bleach catalyst granule.
Specification