Removing manganese salts from a solution containing iron salts

摘要

Soluble manganese salts present as contamination of a solution containing iron salts are removed by adding an oxidation agent capable of converting the soluble manganese salts to manganese dioxide and by adding manganese dioxide particles as seeding agent whereby any colloidal manganese dioxide is deposited on the seed particles. The MnO 2 particles separated from the solution may be recycled on seed particles. The oxidising agent may be potassium permanganate.