Patent ID: 6635612
Filing Date: 2003-10-21
Classification: C11D

Abstract:
A process for preparation of a chelant composition by a non-spray-drying process, comprising the steps of:a) admixing a transition metal chelant and an inorganic compound to form a mixture; b) agglomerating said mixture in an aqueous medium to form a chelant agglomerate; and c) drying said chelant agglomerate wherein the inorganic compound is selected from the group consisting of sulfates, carbonates, silicates, aluminosilicates and mixtures thereof; and wherein the transition metal chelant is selected from the group consisting of diethylenetriaminepentaacetates; ethylenediamine disuccinate; and mixtures thereof; and wherein the chelant agglomerate resulting from step c) consists of said transition metal chelant and said inorganic compound.