Reduction smelting of manganese nodules with a liquid reductant
US3957485A · kind A · utility
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8Claims
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Key dates
| Filing date | Oct 15, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Oct 15, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of recovering metal values from deep sea manganese nodules. A liquid reductant such as bunker-C oil is utilized as a reducing agent. As a result of the efficient contact between the liquid reducing agent and the nodules, little prior preparation of the nodules is required to recover a high percentage of copper, nickel, cobalt and molybdenum. A new series of metal alloys are produced in the selective reduction of the nodules, the major phase being iron-rich nickel, one minor phase being 80-90% copper and the other minor phase being a combination of manganese, molybdenum, nickel, cobalt and iron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.