Method for anti-caking encapsulating of granular or compacted materials and encapsulated materials obtained

摘要

The invention relates to a method for treating granules with a tendency to gather into a mass so that they do not cake together, characterised in that the said treatment consists in forming, in situ around the granules, a porous solid thin capsule or shell, consisting principally of a metal salt which is barely water-soluble or insoluble in water, such as magnesium phosphate. Application, in particular, to the treatment of fertiliser granules.