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What is Platinum-Group Metal Recovery Process about?

This patent describes a two-stage process for recovering platinum, palladium, copper, gold, nickel and iron from ore concentrates. The process involves: 1) Smelting the concentrate with a flux to form a matte and slag. 2) Dry grinding the matte to a particle size suitable for leaching. 3) Leaching the ground matte with sulfuric acid to selectively extract over 99% of the nickel and iron. 4) Leaching the residue from the first leach with sulfuric acid and sodium hypochlorite or hydrogen peroxide to extrac

Author

Ashleigh Hein

Language

EN