| 摘要 |
<p>A method for leaching a mixed feed containing a plurality of metal values in an autoclave by oxidising sulphur components in the feed to produce sulphuric acid in-situ. The feed components are selected to give an appropriate acid balance on oxidation. The slurry resulting from the leach is neutralised and metals are removed by processes such as electrowinning, cyanidation, solvent extraction etc. after the slurry has been subjected to a solid/liquid separation step.</p> |
