Method for the recovery of cobalt oxalate and/or manganese oxalate
US4488999A · kind A · utility
7Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Feb 1, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a process for the recovery of cobalt oxalate and/or manganese oxalate, the solutions or extracts containing cobalt and/or manganese are treated with sodium, potassium or ammonium oxalate. To obtain an easily filtrable cobalt and/or manganese oxalate precipitate, the precipitation is performed at temperatures of 50.degree. to 160.degree. C. with 1 to 2 moles of solid alkali oxalate or ammonium oxalate. When sodium oxalate is used, the water content of the solutions or extracts is from 5 to 90% by weight, when potassium oxalate is used it is from 2 to 15% by weight, and when ammonium oxalate is used it is from 1 to 12% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.