Purification process for gold-bearing iodine lixiviant
US5026420A · kind A · utility
3Cited by
4References
13Claims
0Family size
Inventor
Key dates
| Filing date | May 1, 1990 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | May 1, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for purifying gold-bearing iodine lixiviant characterized by bringing the gold-bearing lixiviant into contact with a strongly acidic cation-exchange resin to selectively adsorb heavy metals while allowing gold and iodine to pass therethrough. The process is particularly useful for purifying gold-bearing iodine lixiviant prior to recovering the gold by electrolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.