Solvent extraction process for the recovery of molybdenum and rhenium from molybdenite
Abstract
Abstract PROCESS FOR THE RECOVERY OF MOLYBDENUM AND RHENIUM VALUES FROM HIGHLY ACID SOLUTIONS WHICH COMPRISES CONTACTING THE SOLUTION WITH A WATER-IMMISCIBLE ORGANIC PHASE INCLUDING A MIXED EXTRACTANT COMPRISING AN ALKYL PHOSPHONATE AND AN ORGANOPHOSPHORIC ACID WITH OR WITHOUT THE ADDITION OF AN AMINE EXTRACTANT, OR FIRST CONTACTING THE SOLUTION WITH THE PHOSPHONATE TO SELECTIVELY REMOVE RHENIUM, ORGANIC ACIDS AND OTHER IMPURITIES, FOLLOWED BY CONTACTING THE RESULTING SOLUTION WITH THE ORGANOPHOSPHIRIC ACID WITH OR WITHOUT THE ADDITION OF AN AMINE EXTRACTANT AND AN ORGANIC PHOSPHATE, AND RECOVERING THE MOLYBDENUM AND RHENIUM VALUES FROM THE EXTRACTANT BY CONVENTIONAL MEANS. PROCESS IS APPLICABLE TO RECOVERY OF THE METAL VALUES FROM LEACH SOLUTIONS HAVING A SULFURIC ACID CONTENT UP TO 600 GRAMS PER LITER RESULTING FROM NITRIC ACID-OXIDATION LEACH OF MOLYBDENITE.
Inventors
- 👤 H Peterson
Bibliographic Details
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