| 摘要 |
<p>An improved leaching method (10) comprising the method steps of: i) preparing and stacking an ore material (12) to be leached such that the ore material is suitable for an atmospheric leach (18); ii) applying a lixiviant (20) at an initial predetermined irrigation rate for a period of time; iii) subsequently applying the lixiviant (20) at a second irrigation rate for a further period of time, the second irrigation rate being lower than the first irrigation rate; and iv) recovering metal values from a pregnant leach solution (22) resulting from steps ii) and iii).</p> |
