Alkaline metals hydrated silicates, sperical granules, process for their preparation and their application in detergent compositions.

摘要

Process for the preparation of granules of alkali metal hydrated silicates by spraying water or an aqueous solution of alkali metal silicates onto a moving bed of particles of alkali metal hydrated silicates travelling as a thin layer in a rotating plate-type device left at room temperature, optionally densification of the granules obtained and then drying. Use of the granules obtained in detergent compositions or in water treatment.