AMINOCARBOXYLATE POWDERS WITH IMPROVED PURITY AND FLOW ABILITY PROPERTIES

摘要

Provided is a method for preparing stable free flowing solid aminocarboxylate chelants by adding to a chelant that contains residual alkaline metal hydroxide a free or partially neutralized carboxylic acid such that the free or partially neutralized acid neutralizes at least a portion of the alkaline metal hydroxide; and isolating therefrom the free-flowing solid chelant.