Process for the preparation of bleaching granules.

摘要

The invention relates to an improved process for the preparation of bleaching granules containing solid, water-insoluble peroxy acids and a hydratable inorganic material, in which process the constituents to be used are mixed to form a powder at low temperature and granules are formed from the powder as the temperature is increased to at least the hydration temperature of the hydratable inorganic material.