| PATENT ASSIGNEE'S COUNTRY | South Africa |
| UPDATE | 07.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
- Biol. oxidising Cu sulphide conc in slurry form to dissolve Cu as soluble CuSO4 - Subjecting slurry to solid/liquid separation to produce a soln with high Cu concn - Treat. soln with a solvent extraction reagent so that Cu ions are exchanged by the reagent for H ions to produce a raffi nate which is high in sulphuric acid & low in CuSO4 - Stripping solvent extraction reagent with SO4H2 soln - Electrowinning Cu from SO4H2 soln |
| PATENT PHOTOCOPY | Available on request |
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