Process for the recovery of plutonium contained in solid waste
US4749519A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1987 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | May 7, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process for recovering the plutonium contained in the solid waste, such as process, technological and laboratory waste. The waste is contacted with aqueous nitric acid solution having a nitric acid concentration of 2 to 8 mole/l, which contains a compound of Ag.sup.2+ soluble in the solution, for oxidizing the plutonium present in the waste and for dissolving same in the nitric solution. Preferably, contacting takes place in an electrolytic cell having an anode and a cathode, by applying a potential difference between anode and cathode which is sufficient to continuously regenerate the Ag.sup.2+ ions used for oxidizing the elements present in said waste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.