Method for the removal of cadmium from acid phosphate-containing aqueous media
US4806323A · kind A · utility
2Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Apr 29, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cadmium is removed from an acid, phosphate-containing aqueous medium with the aid of an anion exchanger, in which process, during the removal, iodide or bromide ions are present in a quantity of 100-6000 ppm calculated with respect to the acid phosphate-containing aqueous medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.