Cuprion process start-up control
US4107262A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1974 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Aug 26, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process in which copper, nickel, cobalt and molybdenum are recovered by reducing comminuted raw manganese nodules with an aqueous solution containing cuprous ions. An improvement is disclosed in which copper is oxidized to provide a starting solution of cuprous ions for the process. In one important embodiment of the invention wet copper cement is added to a solution of carbon dioxide and ammonia and ground manganese nodules are then added to the mixture. As a result, a starting solution containing cuprous ions is produced. A major advantage gained from utilizing manganese nodules as an oxidizing agent is that the manganese nodule is itself reduced and its metal values are added to the reaction solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.