Ion exchange resin volume reduction
US4762647A · kind A · utility
6Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1986 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Sep 10, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F9/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A process is described for reducing the volume of spent ion exchange resins containing radioactive contaminants, and a filter aid having groups reactive with the functional groups of the resins. Spent ion exchange resin and the filter aid are dewatered, then subject to a pressure of about 2000 psi in conjunction with 250.degree. C. heat to reduce the volume occupied by the resin by up to a factor of 5 and impart rewet stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.