Patent ID: 7446085

Claim:
A process for preparing detergent particles comprising the steps of: (a): preparing a slurry comprising a water-soluble solid alkali inorganic substance (A) in an amount equal to or greater than 4 times the amount equivalent for neutralizing a liquid acid precursor (B) of a non-soap anionic surfactant to be added in step (c), and a zeolite in an amount of 10% by weight or less; (b): spray-drying the slurry obtained in step (a) to give base particles; and (c): mixing the liquid acid precursor (B) with the base particles obtained in step (b), wherein the amount of (B) is 25 parts by weight or more, based on 100 parts by weight of the base particles, and dry-neutralizing the resulting mixture, wherein the detergent particles have a bulk density of 150 to 446 g/L.