Method for the chemical decontamination of nuclear reactor components
US4226640A · kind A · utility
31Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1978 |
| Grant date | Oct 7, 1980 |
| Priority date | — |
| Expiry date | Oct 26, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F9/004
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Chemical decontamination of equipment contaminated with radioactive material, such as components and systems, particularly water-cooled nuclear reactors, by pretreating with alkaline permanganate, rinsing with demineralized water, treating with a citrate-oxalate solution, rinsing with demineralized water, and post-treating with an acidified hydrogen peroxide solution containing suspended inert particles. Solutions desirably contain no sulfur. The decontamination solution with a pH of about 3.5 and other preferred operating conditions are recited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.