Process for the removal of bismuth and antimony from aqueous sulfuric acid solution containing bismuth and/or antimony
US4501666A · kind A · utility
5Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1984 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | May 2, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein is a process for the selective removal of bismuth and/or antimony from an aqueous sulfuric acid solution containing dissolved bismuth and/or antimony mixed with other metals, such as an electrolyte formed in the electrolytic purification of metals, by which process bismuth and/or antimony are selectively removed from the above sulfuric acid solution by bringing said solution into contact with a phosphomethylamino chelate resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.