Process for recovery of zinc values from zinc waste
US3958986A · kind A · utility
6Cited by
2References
6Claims
0Family size
Inventor
Key dates
| Filing date | May 30, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | May 30, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/343
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Process for recovery of zinc and other metal values from zinc waste or other metal waste containing chlorine and/or other anions forming undesirable metal salts. The waste is leached with a liquid organic phase containing a cation exchanger. The impurities are removed from the organic phase with water, and the zinc and other metal values are extracted from the organic phase with mineral acid. Thereafter the zinc and other metal values can be recovered with known methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.