| PATENT ASSIGNEE'S COUNTRY | Belgium |
| UPDATE | 08.99 |
| PATENT ASSIGNEE | N.V. Union Miniere SA |
| PATENT CLAIMS |
- Dispersing Cu in alkaline ammoniacal ammonium sulphate soln for 0.25-3 min to remove impurities thereon & to activate the surfaces thereof - Adding Na K tartrate as a combined complexing & reducing agent to slurry & mixing for 3-5 min - Adding soln contg Ag ions to coat Cu |
| PATENT PHOTOCOPY | Available on request |
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