Process for and implementation of the granulation of inorganic compounds which are difficult to granulate or agglomerate by incorporation of a magnesium sulphophospho complex binder

摘要

The present invention relates to a process for the granulation of inorganic compounds which are difficult to granulate or agglomerate and especially phosphal and its potassium derivatives, natural phosphates and their potassium derivatives, normal superphosphate enriched in SO3 by introduction of gypsum or phosphogypsum, or phosphate compounds partially soluble in ammonium citrate at neutral pH 7 and their potassium derivatives. According to this process, the compounds to be granulated are made easy to granulate while retaining a short disintegration time and subsequent virtually dust-free handling in the presence of a magnesium sulphophospho mixed complex prepared in situ or separately in solution before being brought together with the compounds to be granulated.