Method for producing cobalt metal powder
US4381937A · kind A · utility
7Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1981 |
| Grant date | May 3, 1983 |
| Priority date | — |
| Expiry date | Sep 21, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for producing fine cobalt metal powder from scrap material containing brazing compositions, the scrap is digested with hydrochloric acid to form a cobalt chloride solution which the silver is removed by precipitation with a suitable alkali metal halide at a pH of about 7 to result in a cobalt amine chloride solution which is further processed to fine cobalt powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.