Procedure for recovery of non-ferrous metals of the iron pirates and related minerals. (Machine-translation by Google Translate, not legally binding)

摘要

Process for the recovery of non-ferrous metals from iron pyrites and related minerals, characterized in that once the metals are dissolved by one of the known processes, it is added to the solution, if it does not previously contain it, chloride ion up to a concentration of 2%. Normal, for zinc and cadmium to form cl4zn2- and cl3cd- complexes in whose form is put in contact with an anion exchange resin that retains them, from which the zinc is eluted, first with water and then with dissolution of a soluble chloride and, finally, cadmium with ammoniacal solution, leaving the resin ready for a new cycle. (Machine-translation by Google Translate, not legally binding)