Method of applying a layer of ion-exchange resin to a support matrix, permeable to liquid, in a filter element
US4786527A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Apr 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J47/133
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A layer of small-sized particles of an organic ion exchange resin is applied to a support matrix, permeable to liquid, of a filter element (7) which is arranged in a chamber (5) in an ion-exchange filter (1) for filtering of liquids containing radioactive constituents. The filter and a mixer (11), consisting of a tube with a number of stationary mixing elements arranged one after the other in the longitudinal direction of the tube, are arranged in a circulation system (10) for water. The mixing elements successively divide up a material flow, supplied at the inlet end of the mixer, into a number of sub-flows containing different parts of the original material flow and the sub-flows are reunited, before they reach the outlet end of the tube. Suspended ion-exchange resin (13a, 16a) is supplied to the inlet end (11a) of the mixer for the circulating water while the water is being circulated in the circulation system. A coating of the ion-exchange resin with predetermined and reproducible properties is obtained on each filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.