Reducing the radium radioactivity of aqueous effluents
US5006254A · kind A · utility
5Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1988 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Apr 26, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Prohibited radioactivity is removed from contaminated aqueous effluents containing both nitrate and radium values, by liquid/liquid extracting such effluents with an organic phase comprising at least one halogenated, preferably fluorinated .beta.-diketone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.