| 摘要 |
<p>In an acid leach copper extraction circuit for leaching copper values from copper ores using a water-immiscible organic solvent solution containing a copper extractant and an acid strip solution, the improvement wherein the stripped organic solvent solution is contacted with copper-free fresh aqueous acid to remove additional copper values therefrom, an then the resulting super stripped organic and the copper-containing aqueous acid are sent to the copper extraction circuit.</p> |
