Method of removing dissolved ferric iron from iron-bearing solutions
Abstract
Abstract AQUEOUS ACIDIC SOLUTIONS CONTAINING DISSOLVED FERRIC IRON, TOGETHER WITH ANY ONE OR MORE OF THE CATIONS ZINC, COPPER, COBALT OR NICKEL, SUCH SOLUTIONS HAVING BEEN PREPARED BY THE ACID LEACHING OF ORES, CONCENTRATES, CALCINES, OR RESIDUES CONTAINING IRON AND ZINC, COPPER, COBALT OR NICKEL, ARE TREATED TO PRECIPITATE THE IRON IN A FORM POSSESSING GREATLY ENHANCED SETTLING AND FILTERING PROPERTIES. THE PRECIPITATION OF THE IRON IN THE EASILY SEPARABLE FORM IS CONDUCTED IN AN AGITATED REACTION VESSEL TO THE CONTENTS OF WHICH ARE ADDED THE FERRIC IRON BEARING AQUEOUS ACIDIC SOLUTION AND A NEUTRALIZING AGENT SO THAT IN THE REACTION VESSEL THE DISSOLVED FERRIC IRON CONCENTRATION IS MAINTAINED AT LESS THAN 1 GRAM PER LITRE, THE PH IS MAINTAINED IN THE RANGE 1.7 TO 3.5, AND THE TEMPERATURE IS MAINTAINED IN THE RANGE 50*C. TO THE BOILING POINT.
Inventors
- 👤 R Allan
- 👤 C Haigh
- 👤 J Hamdorf
Bibliographic Details
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