| 摘要 |
<p>The invention concerns a hydrometallurgy method comprising, in a first step, leaching oxidised ore with an aqueous solution inert with respect to the acid or basic gangue, containing amine and/or ammonium carboxylate(s) and/or carbonate(s), selected on the basis of their complexing power with respect to the metals being treated, in particular copper, iron, zinc, cadmium, nickel, cobalt, manganese, silver and/or gold and/or any other transition metal of the periodic table of chemical elements, the metal(s) being brought to the adapted degree of oxidation by air or oxygen injection, and, in a second step, precipitating the metal salts by standard methods, the metal-depleted solution being reusable, after regeneration if required, with the usual equipment in the fields of hydrometallurgy and chemical engineering.</p> |
