Multivalent metal ion extraction using diglycolamide-coated particles
US7553461B2 · kind B2 · utility
4Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2007 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21G2001/0089
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A separation medium, a method for using that separation medium and an apparatus for selectively extracting multivalent cations such as pseudo-lanthanide, prelanthanide, lanthanide, preactinide or actinide cations from an aqueous acidic sample solution is described. The separation medium is preferably free-flowing and comprises particles having a diglycolamide (DGA) extractant dispersed onto an inert, porous support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.