Process for recovering pertechnetate ions from an aqueous solution also containing other ions
US5603834A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/3278
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A solid/liquid process for the separation and recovery of TcO.sub.4.sup.-1 ions from an aqueous solution is disclosed. The solid support comprises separation particles having surface-bonded poly(ethylene glycol) groups; whereas the aqueous solution from which the TcO.sub.4.sup.-1 ions are separated contains a poly(ethylene glycol) liquid/liquid biphase-forming amount of a dissolved salt. A solid/liquid phase admixture of separation particles containing bound TcO.sub.4.sup.-1 ions in such an aqueous solution that is free from MoO.sub.4.sup.-2 ions is also contemplated, as is a chromatography apparatus containing that solid/liquid phase admixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.