| abstract |
THE INVENTION CONCERNS A PROCESS FOR THE SEPARATION OF METALS FROM GROUP VIII AND FROM GROUPS V AND VI OF THE PERIODIC TABLE OF ELEMENTS IN AN AQUEOUS SOLUTION CONTAINING THEM. ACCORDING TO THE INVENTION, THE METALS OF GROUPS V AND VI ARE TRANSFERRED FROM THIS AQUEOUS SOLUTION IN A FIRST ORGANIC SOLUTION WHICH IS EXTRACTED WITH A FIRST AQUEOUS SOLUTION, THEN THE METALS OF GROUP VIII ARE TRANSFERRED INTO A SECOND ORGANIC SOLUTION THAT IT IS USED BY EXTRACTION IN A SINGLE AQUEOUS SOLUTION. APPLICATION TO THE SEPARATION OF MOLYBDENE, TUNGSTENE AND VANADIUM. |