Method of separating cationic from anionic beads in mixed resin beds
US4523996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1984 |
| Grant date | Jun 18, 1985 |
| Priority date | — |
| Expiry date | Feb 22, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J47/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A ferromagnetic material is integrally incorporated with each of the ionic beads of one component of a mixed ionic resin bed containing more than one ionic bead component, such that the one ionic bead component can be separated from the other component by attraction to a magnetic field. Ionic beads containing a ferromagnetic material are attracted to an inhomogeneous magnetic field while other ionic beads devoid of the ferromagnetic material are not so attracted. In another embodiment, a ferromagnetic material having a specific Curie temperature may be incorporated with one ionic bead component while the other bead component contains a different ferromagnetic material having a different Curie temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.