Solidified radioactive wastes and process for producing the same
US4648990A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1984 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Dec 14, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F9/162
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
YThis invention concerns solidification products capable of immobilizing radioactive wastes containing water soluble solid components stably for a long period of time, as well as a process for producing the same, in which radioactive wastes are immobilized with an alkaline earth metal silicate compound and the alkaline earth metal silicate compound intakes the water content in the solidifying agent as the bound water to or a hydrate. High temperature and high humidity condition has been found to be necessary upon curing in order to take the water content as the bound water. This invention can provide solidified wastes with less development of detects such as open pores or cracks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.