A process for producing agglomerates with a core/shell structure, in which i) initial agglomerates containing a first particulate solid are prepared; ii) a second particulate solid is agglomerated in the presence of the initial agglomerates with the addition of a binder liquid to give second stage agglomerates and, where appropriate, iii) an nth (n>=3) solid is agglomerated in the presence of the (n-1)th stage agglomerates with the addition of a binder liquid to give nth stage agglomerates.