Granular water-soluble perborate-containing salt mixture

Claim 1

PROCESS FOR THE PRODUCTION OF GRANULAR SALT MIXTURES CONTAINING PERBORATES, WHICH COMPRISES MOVING A FINELY DIVIDED, WATER-SOLUBLE PERBORATE ON A SUPPORT SURFACE FOR CONTACT BETWEEN THE INDIVIDUAL DIVIDED PARTICLES, WHILE SPRAYING THE PERBORATE WITH AN AQUEOUS SOLUTION OF AN INORGANIC SALT CAPABLE OF CRYSTALLIZING WITH THE BINDING OF WATER OF CRYSTALLIZATION, SAID SOLUTION BEING UNSATURATED WITH RESPECT TO SAID INORGANIC SALT AT THE TEMPERATURE OF OPERATION, THE CONTACT OF THE PERBORATE AND AQUEOUS SALT SOLUTION BEING EFFECTED AT A TEMPERATURE ALLOWING CRYSTALLIZATION OF THE SALT SOLUTION AND AGGLOMERATION BETWEEN INDIVIDUAL DIVIDED PERBORATE PARTICLES, SAID SALT SOLUTION SPRAYED CONTAINING AN AMOUNT OF WATER NOT SUBSTANTIALLY IN EXCESS OF THE AMOUNT OF WATER CAPABLE OF BEING BOUND AS WATER OF CRYSTALLIZATION BY THE SALT MIXTURE FORMED THE QUANTITY OF SOLUTION WHICH IS SPRAYED ONTO THE PERBORATE TO BE GRANULATED BEING THE RANGE OF 5-45% BY WEIGHT BASED ON THE GRANULATE TO BE PRODUCED, AND RECOVERING THE GRANULAR AGGLOMETRATED PERBORATE PARTICLE SALT MIXTURE FORMED CONTAINING SUBSTANTIALLY ALL OF THE WATER SPRAYED AS WATER OF CRYSTALLIZATION.