Process for the granulation of precipitation products formed from ammonium compounds by substitution with alkaline-earth compounds

Abstract From the Canadian patent

The disclosure describes a process for the granulation of the precipitation products formed from ammonium compounds by substitution with alkaline-earth compounds. The solution for treatment and an alkaline-earth compound preferably milk of, lime or lime water which is present in aqueous solution, are introduced into the bottom section of a reaction chamber and are, mixed intimately therein. The solutions are mixed immediately on or after entry into the reaction chamber and the alkaline-, earth compound precipitation products are withdrawn in the form of a hard granulate difficultly soluble in water from the reaction chamber. The disclosure also describes an apparatus for performing the …