Method for eluting antimony adsorbed on chelating resin
US5989430A · kind A · utility
1Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J45/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a method for recovering antimony from the electrolyte of copper electro-refining process, the antimony is adsorbed on the chelating resin and is then eluted by acid. The eluate is then neutralized to recover antimony. In a conventional method, a large amount of acid and alkali is used. In the inventive eluting method, the antimony concentration in the acidic eluting solution is adjusted to 4 g/L or more in the first step and 3 g/L or less in the second step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.