Method for treatment of aqueous solutions with ion exchange fibers
US4313832A · kind A · utility
47Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1980 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Jun 12, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J47/133
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Ion exchange fibers having a thickness of about 2-200 micrometers and a length more than twice the thickness are mixed as a slurry of cation, anion or mixed cation and anion exchange fibers, with or without powdered ion exchange resin of 2-250 micrometers diameter, to intertwine the fibers and immobilize any powdered resin present; the resins are coated from the slurry as a mat on to a filter support; liquids to be purified are passed through the mat until the ion exchange materials are exhausted; and the exhausted mat is stripped from the filter support by a backwash of liquid, gas or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.